How did you manage to f*ck that up . It’s a pretty straightforward job junking the SAS and the only thing about the silencers is the bolts can be a bitch to remove.
I did mine myself and it ran better and without all the excessive heat from the oem stuff.
Off for a MOT at 3.30pm , bike is up for sale now . After 45 years of trail riding it's a bit of a wrench but I'm not getting any younger and 3-5 days of pain after every trail ride has made up my mind .
https://www.ebay.co.uk/itm/206402128589
Had the same with my T700, the front of the tank went rusty in less than 6 months. The dealer supplied me with a new tank under warranty and I got it painted by a mate .