1) That's a Wolf with a 220 back tire, will definitely not fit a K9 with its 300. That's what you have to be aware of, the exhaust is "bent" to accommodate the rear tire.
And yep, I'm the Tank that ran Tampa Big Dog for 5 years.
I have a set of V&H 2into2 that are on my Mastiff now, they are in excellent shape. They will fit the K9 also, same bracket. I would be willing to part with them for the right price. if you are interested, PM me with your offer.