I used the SSBC kit on my '69. Their instructions were pretty good. I bent my own lines, which I think made the job easier. Almost everyone I've heard of that tried to use prebent lines on a conversion had to send them back or rebend themselves.
Yes, it is a great time to redo the whole front suspension, including bushings- it's almost all the way apart anyhow.
When I did mine I only had a gravel floored carport, so yes it is something that can be done with the car sitting on jackstands- just remember- SAFETY!
I would say the front disc conversion was the biggest improvement I've done as far as drivability.
__________________
1966 GTO
1969 Lemans Convertible- F.A.S.T. legal family cruiser. 12.59 on G70-14 Polyglas tires. 1.78 60'
1969 Bonneville Safari- cross country family cruiser. .
1979 Trans Am 400, 4-speed, 4 wheel disc.
View from the drivers seat racing down Atco Raceway-
http://www.youtube.com/watch?v=GhYDMdOEC7A
Ride along in the other lane-
http://www.youtube.com/watch?v=mIzgpLtF_uw