Oldeast -- I don't know you outside of what I've seen you post here, so my comments are based on that
- Getting into 3D printing can be a time and cash sink. The obvious expense is infrastructure (work space, ventilation, cost of printer), consumables (resin, alcohol, paper towels, eye protection, ventilation, etc).
The next big cost is time - I'm not a CAD expert like some on here, but even the simplest models can consume a significant amount of time (that you aren't spending on the layout) .. For example, HUNT tower on Dave's TTrak module was a 2-3 day effort. I didn't draw the cad. I found it online, but getting it to print without issues was a chore/ The Huntingdon station on the same module was a 2-3 week effort just to get the components designed, test prints, corrections, more tests etc ..
There are CAD models available online for free or small cost (usually less than 5 dollars) ..
Some cottage industries are making models to sell (usually relatively cheap) --
I guess what I'm saying, if you only want a few detail pieces, such as dumpsters, porta poties, automobiles, and such, it might be cheaper in the long run to just to pay someone to do the work for you, rather than spend a significant amount of $$$$, time and effort.
I think in the long run, you might be better off focusing on your layout completion and JFRT rather than heading off into this tangent ..
r/ J
