All valid points,
@Beau Diddly
I get the whole long term relationship thing, Lord knows I've bought and sold more projects, cars and motorcycles than I care to admit. That being said, I don't plan on getting rid of this one (I know I know...). It's great for dog hauling, hitting the beach and about anything else I do. Just something about it every time I hop in it.
I do agree the current motor is over engineered and built, but a part of me is thinking way down the road about parts and their prices as supply dries up. The thought of being able to walk into almost any auto parts box store and get what I need for fairly cheap for the 5.3 is a big plus. The extra power won't be scoffed at either if I pull out into traffic or get up to speed on the Ravenel or the mountains in NC. Then an other part of me has always wanted to do something along these lines. Call it a bucket list item I suppose. I know, whatever helps me sleep at night to justify this, right?
As far as the actual swap itself, yeah I want to do that part myself. I have talked to the owner of my company, we have a 2 post lift and a forklift that I can use/pull the swap off there. I have probably all the remaining tools that would be needed. Sans any welding, I'm an insult to welding, but that's minor to overcome should it be necessary.
My very early thinking in the process has me believing the "easy" part will be pulling the old motor and bolting in the new one. The hard part will be the wiring, sensors, AC, alternator, fuse block and what not. You know, the important stuff.
Marks4WD down under has adapters to mate up to a 4L65 or even the stock tranny along with about everything else it appears. They're awfully proud of their parts though $$. I have a line on a source of brand new GM motors for supposedly cheap. Waiting to hear back on if the guy has one available that I want. So budget wise is $5-6k from initial research. Safer to say $7k I suspect. The wife will like the sound of $5k much better...
Anywho, that's my thoughts. I know they'll change drastically as I start to compile an actual parts list and price things out. Appreciate the feedback.
Side note, I'd love a diesel swap, but that's more money and if I'm not in over my head now, I'd certainly be on a diesel. Would enjoy helping you out in 2018 if you need a hand, just let me know.