Will GM 200r4 work with factory floor shift location?

OK...In the first pic you can see the 200R4 trans lever in the upright position. First pic is with trans in "PARK" second pic is with Trans in "LOW" gear. Third pic is with trans lever in down position with trans in "park", last pic is with trans in "LOW".
If you mount the shifter cable behind the shifter so that you're "pulling" the cable when you shift out of "park" then you are forced to mount the trans lever in the down position so that you pull the trans out of park.
If you mount the shifter cable in front of the shifter then you are "pushing" the cable as you come out of "Park". In this case you would have to mount the trans lever in the upright position so that you are "pushing" the trans out of "Park" as you pull the shifter back.
The only difference is how much room you have in front of and behind the shifter to fit the cable and how much bend you have to put in the cable to get from point "a" to point "b". If you mount the cable in front of shifter you will need a much longer cable which will probably have to go from the point in front of the shifter through a hole in the tunnel then forward around the passenger's side of the tranny and around the tail section of the tranny in order to approach the shifter from the rear.
If you mount the cable behind the shifter it much easier, like the pic I showed in my previous post.
Of course it's up to you. You will need to buy or manufacture a bracket that holds the cable under the trans pan rail. You want the cable to be horizontal after installation (at least the part of the cable that goes from the bracket to the trans lever). The bigger the bends (in the cable) the better. I'm sure each manufacturer has their minimum radius requirements for the bends in the cables.

That silver spot you see on the trans lever is where I would drill the hole so that I get 1 1/2" of throw (which is the Cuda stock linkage throw).

Hope this helps, do you plan to abandon the stock shifter linkage??

Now if only someone could tell me an easy way to wire the neutral safety switch/back up light from the 200R four prong plug??? I'm a machinist and a welder, I think I know everything but sadly....I don't!!

treblig