You can make your own transmission attachment bracket that ends up with the shifter in the middle of the floor. Here's the bracket I made. Notice the up-over-up I made out of 3/8" steel. Here's the bent shifter arms that clear the solenoid. Notice that I not only shortened the shifter dogs on the shifter plate but welded them on. By shortening the radius I shortened the overall shifting distance between the gears. It still has the traditional 3 speed 'H' pattern.
Finally this is where the shifter ends up... in the middle of the floor.

~ Cosmo
1949 Chevy Half Ton
Rocinante, like Don Quixote, he is awkward, past his prime, and engaged in a task beyond his capacities.
"...my good horse Rocinante, mine eternal and inseparable companion in all my journeys and courses." ...Don Quixote, Cervantes
"If you come to a fork in the road, take it."...Yogi Berra
"Rudeness is the weak man's imitation of strength." ...Eric Hoffer