Don’t miss match tires on drive wheels, they can grip differently and cause major issues. Put 2 matching ones on the front.

You really should have 4 matching tires for the best handling.

Good price for both arms, labour and alignment. Probably even on the cheap side.

You need to check and see if your caliper pins or the caliper itself are seized, brake shoe adjustment in the rear can also cause a weak pedal.

That you shouldn’t, and straight piping anything especially a 4 cylinder econobox which I assume is automatic is cringy

You paid for coolant, labour, and mark up on the part.

No mechanic cares that you can find the part online for 40 bucks. The parts store has it on the shelf and it’s a quick warranty process if it fails. We buy it from them and resell it to you for profit.