I've yet to see one which was as nice as I'd like, as pretty much everything, be it from existing machinery,
or indeed more on topic, what could be used for such from other sources, all seem a wee bit thin to me...
that is, if one intends to bolt a lip of some sort very snuggly, or cut away some of the structural profile instead.
Not holding my breath for something a lil nicer to come along, so I suppose I will probably try some 80x20 and see how that goes first,
Edit: (muck about with things for a bit, and see if I can do without needing more profiles) :rolleyes:
Tom