Thanks for that Don and the link, those kits came up om ME forum where I also posted this.
Gerrit, I suppose electric does have the advantage that you can easily run it whenever you like as it does not need a compressor, steam of fuel so makes a nice little desk toy. I am thinking about getting a micro USB socket to put in the wooden base so it can easily be run off a phone charger etc. Though if I can get it to run off a 1.5V cell may just fit a holder for that.
It made a nice change to do something a bit different, I'm waiting on the bearing castings for the IF Allman so this made a fun little fill in project.