I don't speak spanish, but there are pictures of a spanish cafe racer. the welding is not too good, but he's a tryer and that counts for a lot in my view!
http://www.pruebaweb.clubcaferacer....7&t=2070&sid=83d9ea24d3dc2b27546e315ffe5517cb
http://www.pruebaweb.clubcaferacer....7&t=2070&sid=83d9ea24d3dc2b27546e315ffe5517cb