Do not get the transmission..
... For starters why would you want to make your pinto shift like.. well... a truck? 2.3 mustnags litter the u pull it yards and you can get a wc t5 from any 89 and up 2.3 powered car with the cable bell for prob 75 bucks on avg. hell take the clutch and flywheel with it and go to the youngest cashier for all in one pricing

even a totally flogged one can be rebuilt for 150 bucks worth of bearings and syncros. secondly the hydraulic bell requires a whole clusterpluck of adapting to set up the master and pedal where the cable relocation takes 2 inches of flat bar with 2 holes drilled in it to make it all fit. no crossmember trimming required.
for ac yeah you would want the compressor from the new motor but thats cause it will have a serpentine belt and the eec controls wot cutout and stuff like that instead of vac switches. the rest of your ac stuff can stay original. incidentally if it is an auto and 2 wd it should have a a4ld that would work nicely. they are kinda crappy but you don't want to hit it with big power and it's just as good as the c3. either way if you have the motor yanked out add overdrive this is the best mod you can possibly do to an older car.
the wiring breaks down to about a half dozen connections for power and gauges. 4 plug 8 plug it doesn't matter since it is all self contained in the engine harness and you get crank fired and coil packs vs distributor. you will need the whole thing neck to nuts on the induction and electronic sides of things. What can you expect. turn the key and go. no choking better mpg smoother idle. it is not a lot more power but it is more civilized. efi is always a good idea if you can pull it off. Incidentally how many miles are on the current one and what is the compression like? A bad pcv can burn a lot of oil.