A body with an A833 and a Gear Vendor installed

I don't think you'll have a weird tunnel at all. Look up some threads here. The only way I found the OD gesrset was an Motortrend article. I called Jamie about them and I waited like 8 mos. I thought it was going to be the cheapest way to get OD, but after sourcing the actual 4 spd and conversion parts, I would've been better ahead with a tkx
I am at this moment looking at previous installs done by other members and am seriously considering it as an option. Thanks for turning on that light. I will do further research and hopefully there may also be some videos to watch from previous installs.