I would like a second opinion on the repairability of this crack in the BB-lug (left chainstay). The frame is an EM MX-leader (sort of a barn find) that I had for some time now but only recently discovered not to be intact. My LBS (used to work in the EM factory) says "can't be done without replacing the seat tube". Surely there are other ways to salvage the frame. Or not?