Here's the reply I got from Quaife about one week ago:
Thank you very much for your enquiry;
QBE62G gearboxes are not currently available to order.
They are in development.
We have no confirmed completion date for this development, so cannot tell you when they will be available again, or at...
In spite of my lack of posts I am working on it every day and it's progressing well. But I am working primarily on the body, just getting the panel fit as close as I can get it, and that for me is a very slow process.
Finally got my doors hung and it feels like a breakthrough.
Before the hinges can be installed the door must be in the correct position and that's what took the most time. Then you can center the hinge location and install the hinge on the chassis.
With the doors in position a 1/4" spacer...
They didn't even need the mockup. They have enough experience to build these headers and you can see how well they fit. They are coated on the inside as well, yes. I will pm you with some pricing info.