@Rod Stewart posted:I live in Canada, dont know how you feel about that?
Releived 😓
Just teasing. All of my Grandparents lived there for years, even if born here. I can almost throw rocks to Canadian shore and a CP engine is my grail to be found.
Send it via of "Bubbles" & the Patrick Swayze Express 
The pin trick would work with a small slot on the length and solder to keep it upright, but they would twist and fall over without it imo.
Note the tube on 0-27 is smaller than O. And because of both being round, I'd extend the web grips down to sit on the foot too, so they aren't as prone to being pried open if pushed on to cause twist.
Wood shelves work ok, but things do work thier way to the edges and fall at times. Same with "level". A lip or track holds best and is immune to vibration of trucks, trains nearby and even light earthquakes.
The milled aluminum shelves are often designed for easier railing than track as there have flange grooves cut in a flat sheet, and the wheels not seated yet just drop in after pushing the loco/car towards the wall some. I.e. built like a paved railroad crossing.i
