I plan on keeping mostly LPS, but I do want the top to have SPS. With it being a pool tank, I'm assuming shadowing shouldn't be a huge issue if I scape correctly and put SPS in the back? Tank is 35" I think so I feel like 2 XR15 at 60% would probably be fine... Could do an XR30 right next to an XR15 but worried it might look funky?What kind of coral are you planning on keeping, this will determine what lighting you need? I will post par this weekend for you. I'm not planning on anything else in the sump, I do have room for a NYOS reactor in the area where the socks used to be but I usually don't run one. I've never had or needed a refugium so can't help you there, I do use a 3d printed basket for bio media spheres I keep in the sump.
https://www.bulkreefsupply.com/nano-tech-bio-spheres-maxspect.html
https://www.etsy.com/listing/1621213238/maxspect-media-holder-for-36-nano-tech