Unless the loader has been really abused there's not much to wear out. Seal kits in 4 cylinders, new pins. and should be "good to go"

Worst case would be maybe needing bushings along with new pivot pins, as the pivot pins were run too long before replacing.

I kinda doubt you're gonna find an equal replacement for the 148 for the same money.

Far as finding a loader to "fit",,,, anything can be grafted onto anything just depends on the time, tools, expertise, space (shop) to git'er done.