After doing some research I see that the DE and DE-K TB's are the same diameter. I have a 1995 maxima this will be going on, and my TPS only has one plug. I am wondering which TB I should use? DE or DE-K? If I have to stick with the DE, who is making adaptor plates now and how much are they.

 

The basic choice is to keep the DE TB, avoid having to deal with any changes, and pay for an adapter (ask StephenMax). It's a simple plug-n-play. On the other, you can buy a DE-K TB and not need the adapter. However, some guys have had difficulty getting that one to work right (idle, TPS).
Personally, I'd prefer to pay a few bucks and stick with one I already know works. And that's what I did!