Under $4k budget build LA360 build

I am new to Mopars and never was a mechanic, but turned wrenches in my youth a bit and work with my hands when employed. My plan is vague at the moment and full of holes, but I hope to continue to improve upon that in the next couple weeks, before moving forward with the build. Due to budgetary reasons, I have all the time I need, to slowly develop a plan. I’m normally a pretty quick moving type of person, so this will be slightly painful, but necessary... Even if I had $7k upfront for a nice crate engine anyways, so now that I don’t have a choice, I’m going settle in. I bought a series of books that will be arriving soon that will be reading to gain more knowledge beforehand and I’ll continue to stock the build threads on this site.

I want to build a streetable engine that’s reliable and not too aggressive that can run on 91 octane pump gas and has a high enough compression to get the tires moving... 9.5-10:1 compression? I’ve seen a few head, cam and piston combos out there that will produce this. I need to learn more about quench and whole lot more, to do this effectively. Lol.

The one purchase I made so far was a very clean .40 over LA360 from late ‘75, pretty pristine 974 iron heads and a stock crank. The block was tested, cleaned, honed and prepped for a build when the previous owner decided to go another way and buy a Crate engine from Blueprint, crank was grinded at the same time and the heads look to be untouched other than cleaned... That’s not confirmed though. Doesn’t matter as I’m either replacing them entirely with 2.02/1.60 J heads or Edlebrock RPM heads, or whatever heads turn out to be the best for my final build plan. I’m going to try my hand at cleaning up and porting the 974’s myself. I do not plan on succeeding, but I’ll take a shot at it. I want to cut in 2.02 valves in as well. I have not researched this thoroughly and I’ve only watched(many) videos on it and read some in depth threads here. In the end, it’s not an expensive experiment and I have time right now to work on it. If I succeed, I’ll use the 974’s. Thank you for reading.