Bill,
To answer your question (just wondering how long it took you to do the tst tab fix?).
1st. I took my time, cleaned as I went. I did not want to rush it.
This was my first time working on a diesel.
2nd. I had lots of interuptions (working out side/family).
3rd. the directions were good, they only skipped a couple of things. I was trying to following them to the letter.
4th. I tore the crank seal trying to get it in and had to wait till the next day to get one.
With that said, if the crank seal would have went right in, I would say it would have been 3. 5 to 4 hours. (This was my first time).
Having to get the new seal and install it I would say it bumped it up to 5. That includes cleaning up the mess made trying to install the first and re-prepping for the new seal.
Now for the items not listed in the directions that would have reduced the time. (I DO NOT HAVE MY NOTES WITH ME AT WORK, I noted all the changes I would do different on the install on the original dirrection). Unbolt the battery wire that runs accross the radiator ( easy to see) there is also a wire loom that hooks in the bottom of the fan shroud. If you remove it at the beginning you will not have to worry about it. If you don't know it's there and follow the dirrections you will be fighting the fan shroud quite a while

. Also the process for removing and reinstalling the fan shroud, fan, and oil filler tube. I did not get the method they listed to work well if at all. Taking them off was tight, but not that bad, but putting them back on, I changed the method/process of how things went back. Those items listed above take quite a bit of time to remove and install. Once you have done it a couple of times it will get faster. I also plan on passing my notes about the install back to TST. Then if they want they can incorporate the information. I have to say there kit was complete and simple. I also looked at what it would cost to make something similar. In my opion you would have a hard time making your own for what they charge for the kit. I plan on trying to talk my Dad into doing the same thing on his truck.