H & R is a good brand. I have installed a few sets for my customers.
If QA1 is a good brand at a good price, I know how to make
them shorter if they are too tall.
The secret to altering a spring's length is in carefully measuring
and understanding the suspension.
I'm one of the few people on TR who can measure a suspension
so that shorter springs don't beat up the suspension, so they don't
flop around loose, and so they don't eat up tires.
Keep us posted on your results. Thanks.-Bob