Yea, the bearings are 5X10, not 5X11, duno why they did that
I had to dremel the front diff case a little bit because the arms have more material around the pin hole, But the rears fit absolutely no mods, and there is a good amount of play with the arms sliding, (not in a bad way) So you can mess with wheel base with shims, currently its shimmed so I have the most wheel base, but its something more to tune =)
For the conversion, maybe a 3rd of Mikes arms, But you cant beat machined alu arms, and hardened CVD's, but I dont have 200 or whatever they cost to blow on a set of arms... I wish I did, but I dont lol
The plastic parts, steering nuts and bearings should be about $30. Turnbuckles should be easy and cheap, $20 for steel. However the (4) CVDs are $60 forseeing the LS10 CVDs will work with the conversion. Have you found CVDs yet?