Aside from Gearvendors, I saw this on the web:
http://www.odspares.com.
Has anyone tried these units in behind an sm420? they are standalone but wouldn't bolt up behind the sm420 like the GV would. It is a standalone unit you can put pretty much anywhere you like along your driveline (cutting your driveshaft and bolting it to this obviously).
I dont' want to change the transmission as i like manual, and i dont' want to bother with shifter relocation/bellhousing work... the GV is very expensive and this comes in at about $1800 all in, delivered to my door.