I bought a 2000 WRX for 3k a few weeks ago knowing that one of the pistons is chipped. Its stock and has done 200k kms. I bought this car to become my daily driver with a reasonable amount of power but i only have a budget of approx 10k.

Im not mechanically minded but have read a fair bit online. My question to some of you more experienced guys is is this swap possible in the budget or should i rebuild the block that is in the car at the moment?

Any help is appreciated.