Belper - not too far away. Thanks for the comments.
Welded the frame up this weekend, top roller is cast iron wheel trued up in the lathe and the bottom roller a tractor cat 3 hitch ball bearings fitted, flatted off and polished up a bit. The rest is scrap steel out of the works skip. Getting a bit of flex in the frame so I need to weld some more steel in there
First bits of alu rolled to try it out attached