Yes thats possibly going to be the plan, I have on good authority from someone you and I both know Rolf that 8% would be fine, although he was thinking 0008 series section, but I've drawn it out and looked at factory boards and they look nothing alike, so I thought I'd compare them to the 63008 section and see what they look like.

I have a set of timber boards that should do the job for starters but once I've gotten the shape worked out, I'm planning to make a mould and my own boards.

Regards