Here's the basics of what you'll need.
1G Manual Tranny Turbo Harness (not the automatic, non-turbo, or any other ones. Yes, the complete harness.)
Transmission(some will argue that you don't need one, but the gears in the FWD Turbo Transmission are different than the N/T tranny, and plus the turbo trannys are stronger too.)
clutch/flywheel
Manual Tranny turbo ECU
injectors
Fuel pump(??)
Boost Gauge(just go ahead and buy an aftermarket one, you'll need it later)
Motor/Tranny mounts(just get new ones, you'll thank me later)
Knock sensor from the Turbo motors
Manual Tranny Turbo MAF sensor
Side-Mount intercooler from the turbo models
turbo piping for the SMIC(you can find them easily)
It's not a LONG or hard project per say, it's just VERY time consuming. Especially the engine harness install. You have to completely take out the old one, and thread the new one in, one by one. And if you don't know anything about DSM's, you are going to fail miserably as you need to know where each and every little connection goes.
There is much, much, much I've probably forgotten, but unless you got a deal on everything listed above, I would just save your money and buy a Turbo DSM. You never know what condition of a motor that you are getting out of a junkyard, and DSM's (even brand new freshly rebuilt) will still break on you.
Save yourself some time and headache, and just buy an already turbo'ed DSM.