That beautiful picture of Pete's proved very expensive for me! :-)
I now have an ABBA set of NYC lightning stripes and an AA set of D&H's. I found that I had to do a lot of trimming on the side frames once I guaged the wheels properly. The molded brake assemblies rubbed on the wheels. However, it was worth the effort. They run beautifully now on my Atlas code 55. They couple closely with MT's and the detailing is very nice.
I paid about $25 a piece for the engines (used) and they're well worth it.