Well, I can tell you what came with my 1989 32-200 E-38, also with a Universal 5432 (though I don't know about the reduction gear being the same).
It came originaly with a 16" diameter two blade prop, running 13" pitch. This was replaced by my PO with a three blade 16" Max prop, which he rather cluelessly set also to 13" pitch. After a few seasons I have settled on about 10.5" pitch for the three blades.