283 Engine Rebuild...or Not?

[BAMO]

I've looked through a lot of threads on this topic, but figured I'd asked to get some more opinions. I've got a 283 that is getting tired and probably due for a rebuild at some point. Now the question is would it be worthwhile to pick up a second 283 (have a line on a one for 250, basically complete with transmission - i.e. I could sell a couple of the pieces that are on it and break even at worst) that needs a rebuild and slowly work through it? I figure by the time I rebuild, I am at 1k over time. My goal at some point would be to add a nv4500 trans in it as well.

I know most will recommend just to by a new crate (or rebuilt/reman crate), but since my current engine has life in it, it's a weekend errand truck at most, I figured digging into a second engine wouldn't be a bad way to go.