I just install a TH200-4R in my truck as well, I just bought a simple shifter kit, I think it was $40.00.
Here are some pictures.
Trimmed to fit perfect
Here is a link to my Tranny install photo album, I have about 100 images of the install, with some good TY setup pictures & some pan dropped plunger images.
TRANNY INSTALL PHOTO ALBUM
Hope this helps.
Scott