Jmardy It sounds as though you have a series of parts that don't quite fit together on your car. If you're very sure the bar size, ride height and shock length you now have are what you want to live with for awhile, try sphere-ball outer bar mounts. They noticably improve any anti-swaybar's performance. I use sphere-ball ends on both front & rear bars to eliminate binding. Hall Pantera and Larry Stock's PPC shop each sell different versions. Finally, try flipping the bar 180 degrees. I've had bars that fit one way but not the other.
The bar end diameter is not much of a problem because the 'balls' in the sphere ball mounts can be bored out to match- if not by you, then by a shop nearby. Just make sure the bar is not somehow oval on it's ends. Some bar mfgrs are a little sloppy assuming the ends are going into bushings. The bar ends should barely slip-fit in the ball. so cut no more than 0.002" max clearance.
And if none of those suggestions work, the bar itself can be re-bent. When I made up my lightweight hollow bars from thickwall 4130 steel tubing. (illustrated article in POCA Archives), I used a cheap hydraulic Harbor Freight exhaust pipe bender to create bars from straight stock. Don't depend on published bar angles- you already suspect your car is a little "different".