Those look OK. I've seen them on a few cutlassesI'm not entirely sure but I am leaning towards these.
https://m.summitracing.com/parts/uwc-521-5861p
Even though it's becoming a less popular size, I'm 99% sure I'm staying with a 15". I run 275/40/18 on my truck and it rides noticeably rougher than before so I probably won't go that size again. They'll probably be the last thing I buy since I have a brand new set of 14's to use as rollers that I bought two weeks before I blew up the motor.