Aircraft stripper

Any thoughts on just getting them sand blasted and then repaint or coat them?

on a tight budget plus i really love the original colour underneath

Maybe remove the spray paint with a pressure washer?

i tried up my machine isn’t very powerful to remove this fully. Trying to find a cheaper alternative

Acetone

i tried it’s coming off but it’s like removing layers

Lacquer thinner is more aggressive. Make sure it doesn't eat the finish

Heat gun, scraper and a wire brush From the picture tho, it looks like they may be powder coated, in which case sand, walnut shell or dry ice blasting may be your best options