700R4 Swap questions. (already searched)

[Xtremjeepn]

I have read pages and pages of text here and either can't find my specific answers or the links are old and dead.

I have a 1974 3/4 ton longbed. Currently has a 454 with a TH350/203.

I picked up a 700R4/208 combo from an 85 longbed that had a 350cid motor.

I really want the deeper first and OD. Had planned on waiting on the swap but there is a guy with cash in hand that wants my TH350/203.

Here are the questions:

-Will the torque converter in the 700R4 work fine with my 454? (came from a 350) No idea what the stall speed is.

-Is there a cheap set up to get the TV working(stock parts) or is it best to run the $80 kit from bowtie overdrives?

-Is there wiring info somewhere for the lockup TC or is the $109 kit from bowtie overdrive the best set up?

-How do I hook a speedo to this thing?(I honestly did not look but think it is electric)

-Anyone made a 203 shifter work on a 208? How?

-Anything else I need to know before I yank out my perfectly good TH350 and make my truck into a planter?

 

[MA87K5]

I would rebuild the 700r4 with good parts b4 the install behind the 454. What year tranny though?
On the TV hook-up go to the junkyard and get some brackets from trucks with overdrive in them.
Not sure on the speedo. Might find an older 208 with a cable speedo at the junkyard still in the truck.

Most of the hook-up parts you can find at the junkyard. And save some $.

I didn't know 85 trucks had an electronic speedo.

I got the parts for my 69 camaro to run the 700r4 and was happy with results. I think I spent a total of $15 for everything. I even had to convert to cable speedo, But I had another tranny that had the cable on it. I know the speedo is in the x-fer case and not the tranny, but same situation.

The converter should bolt up.