Will GM 200r4 work with factory floor shift location?

Well I guess it's true if you look at it that way. If you can lock up the converter at any RPM or speed it shouldn't make a difference as long as you have the "disengage" system in place for when you slow down.
In my case, I have a non lock up so I have to make sure my cruising speed is above the stall so I don't get too much slippage (and heat). There are advantages and disadvantages to both types of converters. The '46 Chevy I built for my son (350 CU, 700R4) non lock up and been working great for 3 years now and he drives it every day.

treblig