Here's to another late reply...

I've haven't had a chance to work on the truck due to some back problems I'm having. Can't really be crawling under the dash to run wires when I can hardly bend over. Had an MRI done and waiting on the results.

Yes, the speedo is MPH. I can't remember what year they did away with the 85 MPH unit. My stock dash currently has a 120 in it.

I have seen pictures of the consoles you are talking about and have searched for them. I have found a couple but they wanted an arm and a leg for them. Thanks for the info on the floor tab. I've made some measurements and sketches to try to design my own (when I can get moving again)!!

Also picked up a dash panel that I can carve up for a head unit. I want to keep the original one as is along with the old AM radio.