225 tire on Valkyrie-necessary swing arm mods

[RDKLL]

I am looking for detailed information on what needs to be done to a stock swing arm to fit a 225/55 CT to a Valk. I am researching the details to bobber my valk. I currently run an Avon 200 Cobra and have 1/4"-3/8" of clearance on the drive side and about 1" on the brake side.
I am looking for information from those who have done this, possibly with pictures. I have searched for the info and have not found enough info to tell my buddy what we need to do, I know it involves cutting and welding but just need more details.
Thanks in advance

[RDKLL]

I know folks have done this...my inspiration, but he is not answering. Again, thanks in advance