B44 steering locking

[Hog]

Right, I've searched through here but can't find what I'm looking for, so here goes.

My indoor B44 has developed a bit of slack in the inboard steering geometry. Sometimes under braking and on full lock, the steering itself will bind up sending the car the wrong way.

I'm replacing the servo horn with an alloy one as there's flex there to be got rid of. Don't want to replace all the steering parts as there's not huge amounts of play yet and the problem primarily seems to come from the Ackermann angle of the "inside" wheel under lock.

I was wondering what extending the steering arms with some carbon fibre pieces would do, so the steering rod pick up point would be further forward? Was going to make some out of an old broken shock tower - they need to be sort of ¬ shape so to avoid the diff casing.

Would this help the angle enough to stop the track rod locking?