Look at the other possible options - tie down points (on trailer deck or rails), location for tool chest/box (hold bottle jack, 4-way, straps, chain, wood blocks, gloves, flares, etc), spare tire and mounting location, adjustable tongue jack (swing-away or just crank), rub rails, led lights, fender lights (really necessary for night storing or seeing fenders in dark), radial trailer tires (new), axle capacity (3500 vs 5200), brakes on both or single axle(s), ball coupling type (bull dog vs ??) and size (2", 2-5/16"), hide-away ramps or stored on side, how ramps secure to trailer to load, how ramps are secured stored, dove tail, and finally wood deck vs steel.
For what's its worth, I have a 18' trailer with a 2" bull dog coupler, I added LED lights, upgraded 3500s to dual brakes 5200s, stepped up to 225 radial trailer tires, 2' dovetail, added my own tie downs (2 up front on rail/2 off center off steel dovetail), steel storage box up front on deck, added spare tire TJ carrier on side of it. It has a wood deck (cooler when laying on it in direct sun). The ramps are stored on side underneath.
For the difference in length, longer is better for the 2' difference.
97 TJ SE lifted, locked and rubbered for fun
94 YJ SE stock, 225s, Trail Tested