Update: I called the guy, MedicMorgan is picking it up today for $250.

Looking forward to another tcase rebuild thread!

Here's the AWESOME story behind it (awesome for US, not awesome for the poor customer who got screwed):
Some poor schmuck's TCase wouldn't shift (no offense to poor schmucks, I've been there myself). So he brought it to an auto-electric shop. Shop said "well duh, let's swap the tcase". And they did. (The one for sale is the one that came off of an 06 adventure h3...). Tcase still wouldn't shift. CRAP! So they replaced the control module... and it magically shifted. So customer paid for a new tcase and control module, when they only needed a control module. BUT... MedicMorgan gets a 4:1 tcase for $250.

YAY!!!
Here's some notes for Morgan, but thought I'd post them here for all:
The plan (subject to change): open it up and replace the plastic shift fork that comes with the 06 with the shift fork from his existing tcase and make sure all the parts are legit. (Morgan: I can possibly ship you one so you can get the new tcase running without any downtime...). Then swap that sucker with the 2:1 for a super-awesome super-cheap upgrade.
Things to look for:
Does the tcase shift manually when out of the car? (Use some channel-lock pliers to turn the shift cam, this is the thing that the encoder motor turns.
Turn the gears at each shift point... you should see a difference between 4 high open (easy to turn), 4 high-lock, neutral and 4-low (hard to turn).
The risk: you're not really buying a 4:1 case, it's another 2:1 case. BUT... it should be verifiable. You could probably ask for the VIN that it came out of and have a dealership friend (maybe Zach can help) validate that it came with a 4:1. I think the VIN magically tells you what it shipped with, am I right folks? But it's a big enough payoff that the risk there is acceptable (imho) and it SAYS it's a 4494. And if the shop is honest they'll probably work with you if you found out it wasn't 4:1. (We can tell from the guts when we pop it open).
Worst case: you sell it for spare parts and recover the $250.
Both Backcountryislife and I have experience with these... he swapped a 4:1 with his 2:1 with no issues, I've rebuilt several with various success on each... so we should be able to help you out. Hopefully we can get it swapped out without downtime-- we'll try to pop open the used one and get it nice before taking your functioning one out. That's the best case scenario.