Yep lots of mates into them but for that price mate you are looking for a set of air conditioned crankcases they dont exist in an evo.
Most guys now would rather rebuild what they got as you can appreciate there is a lot of heat in a certain element of our motorcycling society and bikes with incorrect numbers are removed from any individual at the moment for further discussion.
The best lead i can give you is a private import from chopaweeze in sydney been around for a while and a very stand up bloke in getting stuff into Aus from america from memory a evo starts in the states from 3.2 up for a good one
The best option would be a call to these guys first and then chopaweeeeze to get it home
http://www.robsusedharleyparts.com/photos/thumbnails.php?album=2 PM me if you need to but evo stuff is the new shovel mate the price point is 12 to 15 k for a good one now an nobody breaks them for the motors here in Aus unless you want to double your price point and buy a taiwan ultma brand new
Good luck with it
Bruce