O.K., I may have been a little hasty with my offer. I notice you are in the U.K. and that makes me think it would be a little pricey... Once again: me and my big mouth. (Or typing fingers...)
That's not a failure. You successfully learned that THAT didn't work... There's a learning curve to everything and it sometimes feels like I am always on the uphill side of that curve...
O.K., I'll play! This is my first. I have learned: didn't really need to use a semi wheel. Haven't figured out how to cut slots in the sides for longer pieces.
Note my fancy customized HF stand. Hey, works for me!