125 gallon trade...want to down size to 70-90 gallon

want to trade a 125 gallon aquarium, i want to down size to a 70-90 gallon aquarium...i want to trade tank,stand and canopy only...this tank is drilled with corner overflow,i would consider doing entire setup if deal is worth it but if not im keeping sumps,lights,filtration,and everything else..tank is 5ft long 24 high,its a 125 tall instead of long style.tank will be completely cleaned at pickup with vinegar and water..