But going off the top of my head.
Engine, LS probably $2k or more for engine, wiring, ECU, and harness prepped for swap. I spent more than that.
Transmission, T-56 or nothing IMO $2500 and I will consider that shipped, trying to imagine lowest cost here.
JCI mounts and driveshaft, IDK, $800 or so
Fuel pump, $100
Headers $300
Exhaust, $800
Shifter, pedals, clutch, flywheel, master cylinder some other hard parts. $1000
Radiator, $300
hoses $100
tools- god knows.
radiator fans, $100
fuel lines and filters, $200
random stuff $$$$
Things that you didn't know needed replaced until you see it. $$$
Just stuff adds up.
A cheap engine is cheap for a reason also.