Nick,
After getting called back in the house, I played truck with my son (Mamod SW and my Mamod Doodlebug). It's fun loading and unloading beer & pickle barrels. We actually need more figurines. Any good 1/12 scale ones that are fully movable? (Knees, elbows)
As for the oven: It's a cheapo. It's just a heat coil type. No actual fan in it.
It has temp, style of heating (I just use bake), and a shut off timer.
I put a thermometer in it. According to the thermometer, it's not very accurate. The temp climbs and dives.
As for the engine, I put a new brass steam line in. The old played one was wiggly and cut short. I gotta have straight steam lines! =)
I tested the lines with a hand pump and to pop out the glass to put in a new seal.