Tail end advice. I have worked so hard on this bike, replacing/repairing almost everything. But for all my efforts I still can’t change what the butcher before me did to the frame. Any ideas on how to fill the gap?

https://i.redd.it/zrmcuwzmhz521.jpg via /r/CafeRacers https://www.reddit.com/r/CafeRacers/comments/a8t0o0/tail_end_advice_i_have_worked_so_hard_on_this/?utm_source=ifttt