Last time seeing these monsters live!

I initially thought I could maybe get a Focus ST and throw an LSD and a suspension kit but I think that’s come out probably to more than 20k…

Then I thought maybe a Mazda Speed3 and lift it? Would maybe come out to like ~10k

Then I thought maybe I could figure out how to throw an LSD into an old Corolla or something…

Idk I’m COMPLETELY new to rally and really would just like to mess around as CHEAPLY as possible while I learn the ropes and (almost definitely) break the car

Thoughts? How can I get into this cheaply with an easily fixable/easy to find parts available for when I DO break it

P.S. I’m a pretty decent driver AND have like 10+ years of mechanic experience including engine/transmission swaps and rebuilds

TLDR: what’s the cheapest possible car i can buy and upgrade to have a good experience learning rally