Ok so when I was trying to figure out how to get progressives on my bike for cheap, I read a number of threads about people using progressives for Harleys on their VTs. Some said, "Eh, its pretty easy, but you gotta grind the bracket down." Others were like, "Nah man, you gotta grind one bracket and one eyelet and get correctly sized bushings and sleeves and and and..."
They were all wrong.
The left side was bolt-on. Used a 2x4 to lever the tire into position and it slid right onto the stock mounting points. No changing bushings or sleeves, just perfection.
For the right side, I only needed to swap the bottom bushings from the stock shock to the HD shock. I simply pressed the bushing out of the Harley shock using a bench vise and two sockets. I used an 11mm socket to push the sleeve into an 18mm socket, then used the the 18mm to push the bushing into an 1 1/16" socket.
Then I repeated the process with the stock shock. After the stock bushing was out, I pressed it into the HD shock by switching the sockets used for removal (the bushing sticks out a little on each side so just using the vice wouldn't work), then pressed the sleeve in. Presto! Now its a direct fit to the right side of the bike.
Ended up dropping the rear about 1.5-2 inches... doesn't sound like much but boy is it enough to make a difference.