I bought the bump steer kit from hotchkis and the spacers to lower t rod at spindal were not in the kit so I made some 1/2" spacers and use one 1/2" on each side. after installation I checked toe as I raised the front end using a toe gauge.
raised 1"-1/4" toe out
2"-3/8" toe out
3"-3/4" toe out
4"-1" toe out

so am I correct to add more shims on outer rod end to minimize bump steer?

speedway motors has EVERYTHING you need.

They also sell reamers if your balljoint taper for the tie rod ends is not the adequate one, you just ream them up to size.

On my 67 cuda setup Im using the lightest A Body spindles with the big upper balljoint, but the those spindles use a smaller upper ball joint, so I bought the reamer and reamed it so it accepted the bigger ball joint.

You can find the tappered pin/stud adapters, the ball joints, and the sleeves you need, as well as the nuts....and they are all super cheap. You should not have more than $150 bucks invested with all you need to buy.

Longacre also sells some bump steer gauges which should help you measure the bump steer accurately and set it all up nice and precise.

I like how Brads70 reinforce the spacer section.. just
putting a spacer down there you WILL get flex and the
way he did it should eliminate the flex... I have the
tapered ream and I think its 8* if I remember right

I have the 10" drum spindals and added the large ball joint also. I could of bought the whole kit from lofgrens,but no one would answer the phone there. their kit was $150.