7a rebuild Options

[95CST]

Ok, so I know most of the people on here are gonna say "just swap it" but i want to rebuild the engine. I dont have a lot of money to throw at anything right now, and I figure that a rebuild would be the best way to go since I dont need alot of money upfront and I can take my time. I have searched on here and have not found very much info an actually rebuilding the motor. I was planning on possible boring out the engine and using some bigger pisons, if i can find some. Also, there is the possibility of a 4a head going on, again if i can find one for the right price, and the head will have a port and polish no matter which one i use on the motor. So any info anyone can throw my way would be greatly appriciated!