Have a barely used ARB locker for 31 spline 9 inch setup. maybe has 500 miles on it and need to sell to finance different third member. it is generation 4 and is like I said barely used. the guy paid over $900 for it(new in box) . is wanting to buy third member already done with ARB installed. thoughts approximately?? what would you pay for a used ARB locker. getting ideas on whether its a good idea to sell it or send it away to have it built in to new third member thanks