Fish wise..... I read something very good recently "get fish that excite you, not fish that excite other people"...... its good to get peoples opinions, but think about what fish that made you want to do a FOWLR...... this is advice that I wish I had taken when I set up my current tank and now I am a little bit stuck with fish that I like but don't love.
There are some good ideas here, but I would caution you to be careful before plunging into anything. For example, getting a hareem of dwarf angels..... it can be done, and it is done frequently, but there are alos lots on instances where the group doesn't work out, and you get WWIII....... if it sounds unusual, ask yourself why everyone isn't doing it........
If I were doing my tank again, I think I would just go for my 5 favourite fish. I think I would start with a short list of 10..... then pick my absolute favourite, then choose my next favourite influenced only by compatability....... don't get caught up in "colour schemes"...... a pitfall that many people fall into.
I think the mistake I made with my fowlr is that I got an emperor angel, and then I thought ok, a yellow tang will look good with him. Then I thought the purple tang would really contrast the yellow tang. Then I always wanted a powder blue, and my mrs wanted a lipstick tang....... then I thought I needed some red and I was tryin to keep corals...... so I anthias...... the end result is a great looking colour scheme, great activity, that everyone thinks looks fabulous, but I ultiamtely find boring....... I should have either not got the emporer and gone for a reef - which would have looked even better....... OR...... I should have got the big non-reef-friendly fish that excite me.... and not an ad-hoc 50-50 mix.
With regard to some of the advice you have been given, I would repsectfully disagree with some of it. For example, I would disagree with the statement "the skimmer is the primary filtration for most tanks"....... it is my opinion that the LR is, and should be the primary filteration. Skimmers, in my view, as like slimming pills.... correctly used, they help, and help alot, but they are no substitute for a health diet - and skimmers are no substitute for a good LR structure.
You mentioned that you will be building up your equipment etc. over time. My advice would be to get good LR, get some good circulation pumps, and get a sump set up properly. If you stock slowly, like you should, then the LR will more than handle the bioload, all the while maturing and creating a stable, strong system. Then save your money, and buy a good skimmer later.
I think it is a mistake not to include macro algae in your sump. I have had macro in my sump for about 7 years, and never had it over grow the system.
Quantity of LR - well my tank has similar dimensions and I have about 200lbs. Here's a pic.