Wow, lifting a train!! That’s heavy!
A PVC rail system makes a lot of sense for moving stuff around. There’s a video on forming curves in PVC using hot sand to make a backyard thrill ride. Same idea would make a track for moving materials. If I built a
straw bale house I’d set up a track from the straw bales to the house site. Though a cart works pretty good too.
I had about 7 carts and wheelbarrows at my
Permaculture site. There’s no such thing as too many. One trick I learned for up-cycling materials is replace the rotting plywood in the “garden carts” with bed liner material. People throw out the plastic bed liners when they spray their trucks. The stuff will last a long time in a cart. Cut the bed liner with a circular saw or even a hand saw. Ive used it on shed roofs also.
The big diameter metal wheels were nice on bumpy ground. The bigger the wheel the smoother the and easier it is to roll. Also a one wheeled wheelbarrow can go down a surprisingly narrow track. Or up a narrow ramp. But I also used a heavy duty two wheeled wheelbarrow a lot.