Soon to be tackling the front suspension. What to look for and replace?

[chevymotocross]

Finished dropping the rear of my truck 6'' via the Western Chassis flip kit. Sport Truck Direct FINALLY shipped out my front coils to go along with my 2.5'' lowering spindles. I also have a new complete RH upper control arm since the one of my truck has rot holes in it.

The other control arms are rusty, but solid. I plan on coating these with Zero Rust. I also plan on all new ball-joints. Tie rod ends seem fine. Will be re-packing the wheel bearings.

I remember back when I had the truck aligned, the alignment guy said the alignment shim studs are very rusty and he had a difficult time breaking them lose. I will inspect these and replace if necessary. The little u-bolts that hold the control arms will probably need to be replaced as well.

The control arm bushings I will inspect, check for any slop or binding. If so, I will replace these as well, if not, I'm going to just re-install.

Steering box was replaced 2 years ago.

Any other things I should check? Where can I buy the little parts like the small u-bolts and shim studs?