This is getting complicated. Do you really want duals that bad? Is it going to make that big a difference too you?
Does seem that way...so looks and possibly a power increase. You just can't do any maintenance easily to the rear of the bike. You could just put on a new tire ( I would go for a longer wearing one) and then sell the bike when it wears out. That way the new owner can remove your dual exhaust and put a single one back on.
I try...good luck. You'll need it. Or........and this is a big Oar, you could just buy the modified center stand and have done with it. It's only money.
Is the Muzzy exhaust the same as ZX14 dual? If so, the only mod is to extend the lever part so it doesn't hit the bottom of the pipe. I picked one up off eBay for just that purpose. Until it's installed, I just added some bumpers to keep the original one from hitting.
Are you running the dual Muzzys Rob??