I can share with you my plan to give you some ideas.
I have a 300 gallon tank 96x30x24 being built as I type this. My sump is a Deep Blue 80 gallon rimless frag tank (48x24x16). It will be a simple two chamber Berlin design (skimmer, manifold pump and heater in one chamber and 2x return pumps in the other (redundancy) with a 3x glass baffle bubble trap separating the chambers. I will be rotating filter bags daily to reduce/eliminate the build up of detritus within the sump and most importantly to eliminate any detritus entering the manifold pump. I already rotate socks daily and I don't find it a chore. It's just part of my daily routine. Feed, check sump and systems, rotate bag. The new system will have space for a used filter bag container so no more moving the container from the garage to the tank every day. That aspect is what makes it a little bit of a chore.
From the manifold pump it will supply water to 2x 20 gallon high tanks (24x12x16 on 2x4 risers making the total footprint approximately 24x24). The manifold pump will also supply other reactors, uv, frag tank, etc. One tank will be a cryptic fuge with the main goal of pod reproduction and secondary goal of allowing sponges, etc to naturally filter water. Through my research of natural cryptic zones deep within reef structures the water flows from the bottom up. So to achieve this I'll make 2x submerged spray bars on the bottom of the tank on both sides flowing toward the center rock structure and up. The spray bars will not be covered by rock as I want access for removal and cleaning. Ultimately the water will flow through a bulkhead back into the sump with an emergency drain in the event the main drain becomes clogged. I'll also have a dry float switch to alert me of a clog via my Apex.
The second 20 gallon high tank will be a deep sand bed and will also have a spray bar at the top to evenly push water across the sand eliminating any detritus from settling. It too will have the double drain and float switch just like the cryptic fuge.
I came to the conclusion that this will be the most maintenance free and optimal filtration setup.
While I don't have a fish room, I do have a fish closet directly behind the tank with an adjacent bathroom for water supply and drain to the city sewer. In this closet I will keep a sealed/vented (to reduce evaporation) 110 gallon tank for storing collected natural seawater (benefits of living on the coast of Florida) for an automatic batch water changer, 3 gallons per day. This tank will be filtered by DE powder and carbon through a Magnum 350 and a UV sterilizer.
I'll also keep 2x 20 gallon poly tanks in there. One will be a still kalk ATO reservoir. The other will be a freshwater ATO for a 10 gallon QT and auto skimmer wash down. It will also be used to manually top off the 110 if needed.
This closet will also house 2x modified BRS dual reactors. One carbon only and the other gfo only. The goal here is to easily not replace all of the media at once resulting in shock to the system. The closet will also contain 2x 2 part reservoirs and dosing pumps and I have a bio pellet reactor in the event I find I need to carbon dose due to my expected high bio load.
The final major component of my system will be an automatic decapped live artemia reactor/feeder and a phytoplankton reactor feeding the artemia. I'm still working out the details, but through the use of my Apex, gravity, air pump, and small water pump I hope to achieve a constant supply of live artemia, which research shows is one of the best foods for both coral and fish. The reactors design will be based on a design Reefworks had a few years ago. The challenge will be getting the artemia to the bottom of the display. I'll likely route small diameter tubing along a back corner of the tank, beneath the sand bed and ultimately coming out of a rock or barnacle. I'll use a separate small pump to continuously feed display tank water through the tube so it clears any pods trapped when the other water supply stops the feeding process.
That's all I got for now. I know it's little more info than you had requested, but I had some free time and thought I would share.
