It doesn't look like B&M make a shifter for a T5.
I don't think there will be a shifter that will work,since the shifter is in the way, before even installing a handle. The seat will need to be modified or a tailhousing, that relocates the shifter, installed.
Maybe search ebay for oem shifters for cars that came with T5s to see if one might work.
Lawrenceville, GA