Im working on my RC10B3 team edition not factory team but close

Anyway the B3 25 degree caster blocks are too hard to find and a few have suggested getting 20 degree B4 caster blocks bec of the 5 degree kickup difference, hence with my 20 degree B4 caster blocks on my B3 (which i restored and love to drive) i can achieve 25 degrees caster.
Only problem ive run into is the steering block/arm/axle carrier vertical pin on the B3 utilizes a ballstud to screw into the top of the pin and thats what holds it in rather than an eclip.
Should i cut the horizontal mounting holes for the camber link ballstud off of the B4 blocks and utilize the vertical hinge pin mounted ballstud configuration on the B3?