WTB: Mercury 1500XS, XR4/6, 850XS lower unit or case

[c-more]

I'd prefer a 1500XS but the less desireable XR4 (with smaller pinion bearing) is okay for my 90 hp. An 850XS with it's 2.3 ratio might work for the same reason. I have access to an 1500XS carrier so a bare case is an option,