cheers mate - I'll find out in the next few days how tidy the weld is (when I finally pluck the courage) and about the inner coating. I haven't got a sand blaster - I'm more hoping that the thought of all the money I'll be saving will keep up my strength with the sand paper, maybe not with the bow one where it won't matter, more with the other six that I was given by a local machanic - if it does'nt rain it pours.