The Cheapest Possible Collective A-Body Build

Oh, I see I had the wrong idea earlier.
Try this;
It's 1974, and a buddy wants some power for his 69 Satellite 318, and of course he wants a 340. So we hit the junkyards and score a cheap engine. We get the top off and it's full of rainwater.
No biggie we clean the heads and intake up, and I pull the 340 cam out, and put all that stuff onto/into his 318 , then tune her up a lil, and he's happy boy. For my time, I get all the leftover parts.
Which I then clean up and assemble, total cost; gaskets and sandpaper. Then I bought an old worn out 273/904 take out, for the trans and the bracketry, I think for 50,delivered!
Then I swap all that into my 65 Valiant StationWagon, throwing the oil burning slanty in the corner. Of course I have no exhaust, but Hooker had fenderwells, and Canadian tire had the rest including two shorty Thrush "mufflers".
I think the headers were 400 or 500. Total cost so far maybe $200 plus headers
Now imagine this 22 year old, with this big-bore 318 in an early-A wagon on 13s; yeah those tires went around the block a couple of times and that was that for them,lol.
That's how it started for me.