Replying to Practicality of an engine swap?

I have the option to buy a '93 legacy wagon, 5spd manual, useless engines for like $100.
I was thinking of swapping an ej20, ej22, or ej25 all n/a's into it instead of buying a wrx, forester, etc. If I get it turboed, which I probably would later down the road, I would have to get new internals, a new tranny, and probably a rear diff.

I would probably have to take it to a shop to get it done because I don't have access to a workshop/ larger driveway.

How practical and cost efficient would this be or is it even worth doing a swap?