You could get by with some cheap gear for a couple of years, but the softshells and cheaper hardshells just don't stay waterproof that long. You'll just end up buying the good stuff eventually. I'd suggest a 2-3 layer hardshell and bibs.
I picked up the Outdoor Research Hemispheres Jacket and Bibs a couple of years ago during one of their sales for 50% off. Lots of pockets for all the gear (beacon, skins, etc), roomy enough for layering, huge pit and leg vents, and zero leaks so far.
https://www.outdoorresearch.com/us/hemispheres-collection
Also, don't expect to use the same gear for cross county. I tried that once and was miserable.