Trust me, if you aren't running the power strips into a GFCI outlet find a new home for them. Doesn't cost very much to switch an outlet out to one if you don't have one already in place but it will save you A LOT of money. Had an issue with the return pump and the tubing slipping off when my tank was initially set up. The pump was spraying water everywhere... for seconds when the GFCI saved not only my tank but probably my whole house! Best 10 minutes of my life spent in addition to the like $15 it cost me to do it.
Granted, thanks to the experience I have fashioned a lid type thing for the return section of the sump so it would not spray out of the sump should it ever manage to pull it off again (he mess caused me to make it that nothing will get that apart now but just in case).
Sorry, not what you had asked but I thought I would share my experience with that first.
When you say running to both, do you mean parallel (with a Y after the pump intake) or in a series? I had considered trying to run them in a series to cut down on a pump in the sump but ended up running them separate with the UV output being placed about where the skimmer input would be in order to help get rid of the junk I just killed with the UV so keep that in mind in you kind the flow rate will be sufficient. I have my skimmer in the sump so it is taking up prime space but looking back I don't know that I would change it. The only thing I would make sure to carefully look at is the flow rate you need for both and make sure you are not causing one to underperform due to the rate it is being delivered water.
Make sure you post pictures once you have it figured out and tank moving along! I want to see how you scape it because I don't know how far I would get with working around the stuff coming in/out of the center of the DT!