There's only 4-5 inches of front suspension travel on these cars, 3 inch is too much spring drop. That's why you're not seeing many 3 inch drop springs.
OPG is ridiculous when it comes to backorder, and I'd put ZERO faith into their estimates about having them in stock again. 4 Weeks could easily end up 4 months, and they automatically cancel your order after 90 days without notification. Horrible vendor to deal with.
good luck!