John,

About the only other thing I have is a radiator.  I got two with my 18-27.  Other than that I only have the 18-28 front wheels because I picked them up at an auction when nobody else was bidding.  As it turns out, they work just fine on my 18-27 (other than the part number being wrong).  I put them on this weekend and now the tractor is on full steel and it looks pretty cool.  I hope to tear into the thing and try to get it running this winter, at least now it's easier to move around.

Enjoy, Joe