LowB,
visit
RENAGATE
The fella who owns it name is Ren. I found him pretty unhelpful so I hope you have more luck.
Or you could be lucky and buy below. But that price is too dear imo. Offer him $450 if it suits your Gbox.
Rengate Toploader Shifter in Maryborough, VIC | eBay
PLUS see it in anger (though this is a 5spd prototype tested on a Jerico Dr5 Road Race dog box. They never made another as far as I know.
[ame]https://www.youtube.com/watch?v=dWDQV-WQb18[/ame]
Remember it only works on an external shift linkaged box. Plus chuck the linkages they give you and make your own steel rods with rose jointed ends. The success of this box relies on there being no slack in the linkage set up at all.
Scotty H aka OzVenom has set one up on his bench of a toploader 4sp he has and its great. The shifters for the Jerico are a shorter throw and have the reverse lock out. I'm not sure if the toploaders do?
Matt