I bought this Franking Trapper for parts today from the Scrapper (off craigs).. Started looking it over when I got it home and much to my surprise, I found the engineering to be way above the average shade tree Engineer.. as a matter of fact the welds are perfect.. and there is no evidence of grinding or cutting on the frame. I know the engine is not original as it is a 75 h60 but my question is did trapper ever put a flat head in any of there frames?? or is it as I expect just a franking Trapper just well done?