+1 on the T105's.
Some of the items you're looking for are available from the factory, but I don't know how these compare to the aftermarket items. Give them a call at (800) 241-5855 and ask to speak to someone in service parts to see what they have. Have the serial number and mfg. date code handy. They should have some manuals with drawings, etc.
If you get any kind of a lift kit be sure to get everything needed so you won't dork up the steering geometry.
Changing the motor ain't a biggie, but access is limited. The easiest way is probably to disconnect the rear spring shackles and jack the body off the rear end. Unbolt the motor from the diff. housing and slide it off. If it's a really old model the motor will be mounted perpendicular to the diff. case. Here you might be better off changing it from under the seat and from underneath on jack stands. It's been a while since I've done any of this. HTH.
Best Regards
