Yes. Where will you put your sump? Under the stand? Find a the largest new or used tank you can fit under there and use that as your sump. You can get a local glass shop to cut a couple 10" tall partitions to fit in the tank and separate the intake area, where you will keep your skimmer, from the return area.
You will want to do this because the water level will fluctuate in the sump and a skimmer won't function to the best of it's ability without a constant water level.
As for skimmers, the largest one you can afford.
Just purchase one rated for 1.5 to 2 times your total water volume. Manufacturers tend to rate skimmers loosely.
90 gallons, with say, another 20 gallons in the sump.....I would go with something like:
Reef Octopus Diablo XS 200 Protein Skimmer - Bulk Reef Supply
Reef Octopus Extreme In Sump Protein Skimmer w/ Gate Valve