318 with 360 heads and compcam build help

Let’s just all understand where im at. I’m a 21 year old guy with 5 classic cars and 0 performance experience. I’ve got 2 darts a 69 impala 83 sierra and a 70 beetle. I can put a motor together but I have no clue about matching parts to work together.
Is the car already on the road ?
If it's a runner, driver, do a compression test and see where your at with engine health.

Then make plans from there, Don't have to do everything a once, maybe start with tune, then duals maybe headers, then 4 bbl, maybe gears, shift kit, stall, then small cam, rebuild 360 heads or speedmaster heads etc..

If you gonna stick with stock stall, highway gears and a low compression ratio 318, gonna have to build around that and keep the build fairly mild.