Discount is hit or miss.
Some are cool and some are sticklers.
I think the one by @Boston Mangler is pretty chill.
As far as independent shops I have had great luck with Bear’s Tires in Miramar, they mounted and balanced my 5 coopers for $100 last year.
Yeah… the one on Genesse will mount anything on anything. I’ve been a very happy customer close to 20 years.
They have now given me a total of 4 new tires over the years to replace ones I’ve obviously destroyed off-road, no questions asked