Tim,
Really, its not difficult. I'm not aware of any online resources (aside from what was mentioned in the other thread), but would be glad to help you out. PM me if you'd like.
The basics:
1. You want to have your clutch and TO mechanism worked out. I went hydraulic. The disc I used I was able to order through Summit after getting a PN. I think it was from a BMW M1.
2. You want to order the correct oil pan/sump. Aviad or Armondo's. I'm sure I can find the PN if you need it. If I recall, you want the one from the Cobra coupe (not the GT40 version unless you're using an original style small diameter clutch/bell housing).
3. Make sure your serpentine belt system will fit...remember the ac. I don't know specifically about the SR setup, maybe it's plug and play in the GT.
4. I think the engine mounts are actually chevy style. I bought mine from a gentleman in SoCal who was doing installs for Hillbank. I suspect there are lots of sources.
5. Of course you'll need fasteners. I used Grade 8. And, if the manufacturer wouldn't put it's name on it, I didn't use it.
6. I put the engine in first, then attached the tranny. It just seemed easier. You'll have to tilt the motor forward, and slide it under the rear bulkhead a bit. Make sure that however you're holding the engine up, you'll have room to slide it forward. I had to take my carbs off and use a lifting plate bolted to the intake.
7. The headers were fun. None of mine were numbered when I received them. I just played with them in my front room until I figured out where they went. Then figured out the order they had to be put on in. I've probably got it written down somewhere, but I'm sure someone around here knows it by heart.
8. The wiring is not difficult. Just look at the owner's manual. Mine was complicated because one of the Maxifuses was bad from the start. I can only assume that my experience was unique.
9. Oh, yes, the hoses. Lube them up good with dish soap. I think I attached mine to the center tunnel first, slid the motor in, and then attached them to the motor. Some cursing was involved. There's not a lot of room to work here. For some reason, I had extra hoses. No, I don't think I forgot anything.
10. The throttle cable attachment will depend on your system. Just make sure that there are no kinks.
11. I'm not sure what most people are doing about the speedo...GPS nowadays? I used the cable with a gear reduction unit...the company that made the reduction unit is out of business, I believe.
12. Finally, the shift linkage. Buy one from Olthoff.
I have a binder at home with most of my info...I'm at work and going by memory. What I told you above is probably all wrong.