Your aftermarket set may work with the current flywheel however you will need to change the disc. What size is your current flywheel/ pressure plate ?  If they match your good.  Otherwise get a set that matches. Some flywheels are drilled for both size clutches. See Rockauto.com The throw out bearing must be for the T-5 and the fork as well. They are do not look like the same size to me. The T-5 looks like it has a bigger input shaft etc. You might have to change out the pilot bearing in the fly wheel. You can use the rear part of the driveshaft however the slip yoke needs to change. The U-joint should be a 1310 series and the slip yoke you get must be the same. You can get a hybrid U-joint but why bother. Speedway sells the slip yokes etc. Look for a T-5/ C-4. The clutch cable just needs a small bracket to move it off the trans cross member...The wiring for the reverse and neutral switch might be different. You might need the engine block plate the goes in between the engine /a bell housing and a EFI starter. The might not be the same( Rockauto lists the starter as for the Pinto is not the same for the Ranger etc.). I'm currently getting the parts myself for my 2.3 Turbo , T-5 and 8" rear end swap. So I'm taking a real hard look right now. I'm going with a new flywheel, clutch kit etc. And I'm not going to try to mix and match...The total cost for me so far is about $130.00 plus shipping. If the weather holds up I getting a T-Bird drive shaft and adding it to the one I have.

Yeah, I would change the flywheel to a T-5 car either a 1983 to 1988 Turbo T-bird or a Mustang. The 2.5 had a Mazda 5 speed not the T-5 . Check rockauto.com A light weight fly wheel might not be the best for street work. Rockauto.com has a great cross reference feature...