Need input on retro-rod my 72 with Bluetooth and maybe iPad

[full foot notch]

So I just bought a 72 c10 auto trans and I'm going towards a retro rod feeling, old vehicle with new creature comforts, so far converting the bulbs to more efficient LEDs , the headlights I might do proper HID or even try the new LED headlight bulbs. My next step on the truck is the stereo in which I would like to do something Bluetooth based and screen based. My first initial thought was do do an iPad or iPad mini in a center console and have it in a custom console between the bench seat and the dash. The iPad would be cleaner and more streamlined but I think I would have issues streaming music and GPS without having to buy a cell plan for the iPad I would have to buy , and I'm not sure it's possible to efficiently stream data from my iPhone, to the iPad, and then Bluetooth that into the dash radio which I would also have to buy.

So my second thought would to go with a double din that I can fabricate into the console, then I get the iPhone streaming , built in GPS , possible in car call answering , and sat radio if I want it which if you get the basic plan from Sirius it's about $20 for 6 months, but then I've gotta rewire the whole stereo that's in there, and since the dash is already cut for a din radio instead of the shaft radios. I would have two radios in the car. I'm strongly against cutting the dash for a double din since that would bring down the value of the truck from a collectors resale value.

Are there any products I don't know about that can help facilitate what I'm wanting to do or what would you guys do in this case.

Also do you guys have any pics of custom consoles that have been built for antique trucks with bench seats still installed.