hmm...I didnt know the 6.2 ever came in the Blazer (and I know that the 80's Blazers some were the Fullsize platform)
thats going to be a tough find too, alot of those old 80's diesel chevy's have long since been taken off the road and not much support for them b/c of how expensive it is to work on them.
There were a bunch of those 6.2 K5 blazers built so finding one shouldn't be that bad. I would take a look at some surplus places as the government bought a ton of them. I guess one off of a CUCV would work for your application.
Happen to have a picture? My brother parted out one at my house last year and there are still some parts he's got. I just have no idea what it looks like to even begin looking to see if he's got one.
Honestly not even sure what "TV" stands for in this case. If you need other parts too, PM me a list.
Jesse don't know where your from but try blacey used auto parts 609 758 1919 last time i was there they had one in the back corner of the lot
and because i am a jackass i didn;'t realize you were 3600 miles away if call tomorrow if they say they still have it i'll get it for you and ship it get they're price i'll pull it