Shitt happens, yes. No matter how careful you are, you can always do wrong when you are not an expert.
Well, ten years in this project had left quite a big amount of scars on the skin of my pride, so I cursed a few miliseconds and quickly began to look for solutions.
And I found, pretty close, the right one: an old truck, as old as the Merkabah, that had the same rear cover and was for sale for scrap.
As Sitec quoted no too long ago: what do you do when a truck has the spare you need? Of course, you take the whole truck home!... or something like that.
And that's what I did with the aid of my brother in law. We towed the doomed truck and parked it at home, ready to be dismantled piece by piece. It had, in addition to a very similar gearbox and a lot of brake components, a V10 that used to work before being put on hold, waiting for a resurrection that never came.