I got an 05 1000 with a thompsons custom cycle swingarm 10" over. Wheelbase is 65". Stock motor with clutch, airbox, and throttle body mods. And spray. Bike is geared 15/46 and it will come up. The bike standing up really depends on a combination of length, how much bike is lowered, rider weight, and gearing. My bike with 15/42 would very very rarely pull the front wheel out of the whole. With 15/46 it's a moster and I'm 210 in gear. I've had extensions before and never had a problem just loctite the bolts on the backing plates and you will be good to go. I went with full swingarm this time because I am spraying and because I had the air tank built into the swingarm and nitrous bottle mount welded on. I would definitely suggest fully adjustable lowering links not just the ones with the holes in them. You should also invest in a front strap kit. you will need longer chain and I would change gearing to at least -1 up front +3 in back. I would also suggest stiffer clutch springs and if it's an 05/06 do the clutch mod on this site except the 750 concave washer and pull the slipper pins out all together. And lower the front fors about an inch and a quarter.