I can easily find a jacket/pant combo under 300 bucks, and in under an hour. Off the top of my head i know there are different color sessions Benchetler jackets for around 115$, and you can get the benchetler bib pants for like 120$. jacket 15k, bib pants 20k, for 235$.
If you look around long enough, you can find better insulated or more waterproof jackets and pants in your price range.
Armada. Moment. On3p.