well, i'd suggest picking a power level and building to it. Your attention to detail is strong enough that you'll succeed at whichever you choose....
The temrinator swap is not as straight forward as all would think. Is it straight forward? yes. Brain-dead? no.
The computer system is an upgraded unit, so you'll have to choose to either drop in the engine and allow the tuner to program your OEM computer to make the 4v to run stoich. OR swap the computer, too.
I went with the computer route.
You need:
(front to rear)
heat exchanger
radiator
radiator fan
head light harness
engine compartment harness
engine harness
dash harness
body harness
air conditioning system
gauge cluster
steering column
keys
air-bags
air-bag trigger box
PATS
GEM
door harnesses
supercharger coolant tank
radiator hose system/thermostat
headers
hood
clutch
THEN, if you're going from 5.0 pushrod to the 4v:
k member (???)
motor mounts (???)
transmission/bell housing
transmission mount
brake booster (valve covers wont clear the larger booster from 94/95)
my car was 100% stripped at one point. had to drop the brake booster to get the engine to center in the bay... and that was 4.6 to 4.6... a 5.0 to 4.6 will be just as bad.
THEN (yea, there's more)
if you dont have the donor car you need to expect to fabricate every bracket ever made... for the computers, fuse boxes, radiator, etc. etc. etc.
THHEEEEN (YEAAA MORE)
If you want more than 390 HP:
Blower port: $500.00
Headers: $500.00
Intake: $100.00
oil pan
exhaust
fuel system (450+ HP = return style) = $1,200.00
pulleys: $300.00
belts: $100.00
then there's fluids... i have $500.00 in fluids alone:
FoMoCo coolant in radiator AND s/c system.
s/c oil
7 qts of full syntheic
FoMoCo brake fluid
transmission fluid
then there's the "might as well" stuff:
idler pulley bearings
rear diffy fluid
brake pads
gauges
welding axle tubes
ceramic coated headers
heat-extraction coating on radiators
THEN theres emissions if you need it.
canister is located in REAR instead of in fender...
I suggest buying the totalled cobra and swapping as you build. OR buying a terminator entirely. OR doing something else. lol.