Pistol Grip with 727 TF

Has anyone used the Shift R Gate from Duncan Motorsports with a stock/original Hurst Pistol Grip and arm? I think unless you buy Duncan Motorsports Shift R Arm ($150) and thier Grip ($95), it will take some work to modify a stock/original Pistol Grip shifter arm to work.
I have the stock Pistol Grip and arm from a 74 Cuda and have the Shift R Gate on the way but wasnt looking to reinvent the wheel if someone has done this modification before and may be willing to share thier tricks. Thanks.