I just sprayed another car in the paint shop that needed a quick clear coat. For this task I use a simple jig to avoid removal of trucks and couplers or taping of such.  I have posted photos and writeup on my blog I have to share photos and writeup on Freight Cars and modeling projects on my Minneapolis & Northland Railroad Company.   If you would like to take a look please do at the following:

http://mnrailroadcab100.blogspot.com/

Lester Breuer