Looks to be a very rewarding project - if you have the time and knowhow!
avenger
Interesting link !
MFSteam
very similar to the Stuart 10V, trouble is where would you get the castings, fabricating it is a possibility but would add a huge amount of time to the construction. a nice engine when complete.
oldstuff
Too advanced for me to tackle, but very cool to see. Thanks for posting that Mike.