Parts readily available and affordable?  For a toy front axle?  My ass!!!!  These are getting harder to find and more expensive by the day.  44s are everywhere.  I think parts are cheeper for them.  A 44 and a 60 is a good setup.  Id put alloy axles and CTMs in the 44 though.  If it was me Id cut em down though.  I know a couple of guys that have gone fullwidth, on the trail there fighting it all the way.