Were I looking to go this route, I'd certainly want to consider reversing capability and perhaps a bit roomier cab to allow for the possible addition of R/C. Also oscillators are a bit tougher to successfully route all exhaust steam up a stack, though this guy obviously did a fantastic job of it, but still, I'd be looking at basing mine on a Jensen 75 I think, as that would offer reversing, with a bit more power. Better yet would be a Jensen 55 style twin cylinder set-up, as that would also offer self starting and much more power!
However, for a first effort, maybe this really is a better way to go.
I have considered a few of those things you have suggested Daniel , the bore & stroke of the #70 & the #25 are the same & I've always considered the #70 to be more powerful & a bit more efficient than the #25/75, reversing is not important to me for a 1st build. the #55 might be overly heavy & they don't always reverse consistently , although I think with the center flywheel/drive gear that would be advantageous. , a PMR #8 is probably ideal though. after seeing that little #60 do a fair amount of work with pressed on friction gears & nylon chain & no bearings ,I feel pretty confident that I can make something suitable for a 1st try. I am no stranger to remote controls. I don't even have a piece of track right now , but 45mm seems like the way I'll proceed...now I just need to find a supplier for the trucks/wheels & maybe a few of train items

this post is an inspiration for me, thanks for posting Jim
