Alright, some progress was made today. Kind of. This is a wordy one. The rear brake situation is good. The original caliper mounted up to the hurricane hanger easily, and everything moves nice and freely. One of the hose hold downs has nowhere to mount as the 'cane hanger does not have a bolt hole for it like the vf hanger did. I will make a 6 inch brake stay as recommended. My plan is to drill out and tap the existing hole in the swingarm (looks like M5 or M6) to bring it up to M8. Is this necessary? I just don't feel like a single M6 bolt will hold under hard braking, especially against shearing force. Not to mention, if it fails then the rear caliper gets sucked into the wheel and it could be pretty bad. The next issue is that the tire rubs the chain on the left side and the swingarm on the right. It's close for sure but it definitely rubs. I'm not sure what I did wrong. My first thought is, would another link or two in the chain allow the wheel to sit back further and gain the clearance it needs on the right side? The further back the wheel sits the wider the swingarm gets of course. My second thought is, did I take too much material off of the cush drive? I don't think that's it because the chain line looks straight. I also have the original cush drive to compare it to if I get desperate. Lastly there is the obvious question of whether the tire itself is too wide. Ok, well now that I've typed all this out I just checked my email from 2017 and I have, in fact, bought too wide a rear tire. According to DMR the widest I can fit is 150mm and my receipt from revzilla says I bought a 160/60. facepalm. Not sure what I was thinking back then but here I am anyway. Looks like I will have to unload a "brand new" 4 year old tire. Bummer. Anyone have any ideas about this? The 150/60 r17 is available for $107. Before I make any moves I will check to see that the tire I have actually IS a 160, I didn't take any pictures while I was there. As an aside, the sprocket I have does line up to the smaller holes as discussed in my last post. Not sure why the last owner mounted it on the bigger holes. It is an JT just as Colddevil suspected, and a 44 tooth stock size. The chain seems to be missing the retainer on its master link, pic included. I tried to pry it apart gently with a screwdriver but it didn't budge. Maybe there's something else going on?