So would I be ahead looking at a smaller sump/fuge with less volume, but less deep?
Easy to make a skimmer stand with some egg crate, PVC, and cable ties. Its much easier to deal with too deep, than too shallow.
I personally like to make my stands out of aquariums. I go to Lowes and have them cut glass panels that I use as baffles, and use silicone to make a sump. Cheaper than the AHDI ones - maybe 10 bucks for the glass. But if you want an AHDI, just make a stand for the skimmer.