Oh...I was looking at the wrong one. The Van Tech in Melbourne is exactly the one I was looking for. I had plans for building the perfect vintage pit bike using one but seeing that I've now got a Steens I haven't really got the money, room or need for the Van Tech. Jonesy's got a NOS Van Tech tank that he was going to use on his proposed pitpike project but he too now has a Steens Hodaka it's doubtful he's want that Van Tech either but you can never tell with him. The Melbourne frame would make a cool pitbike with whatever tiddler engine you wanted to use. I'm using a TS90 Honcho engine in my Steens and I reckon it'd be the perfect motor for the VanTech as well.
These things are really cool little bikes though. They came with all sorts of 90-100cc engines such as Hodaka, Fuji, Honda postie engines, Suzuki TS90 and so on. They also made a small number of full sized frame kits like the 250 bike shown above. There's a really good article on them in VMX# 36.
Below...left Hodaka 90 power, right, Honda CT70 power.