My only concern right now is the difference in wheel-bases... but a little chopping of the wheel wells should solve that problem... next proble: body mounts.
Also, does the sammy have a guage pod thinger like the Tracker does?
Also, on titling a thing like this, would I be using the tub title, or the chassis title?
Body mounts - can you adapt the Sami floor like you would a flat bed to the back of a pickup frame? Probably the easiest way of doing things.
For what a Sami looks like inside, check out Ebay, lots of people take pics of the interior when listing their Sami on there.
Titling, depends on what state you are in. For example, I have the POS CJ6 that needs a totally new body. Nothing left. However, it is insured and tagged for the streets of KS. (No vehicle inspection, just VIN.) When the state came to inspect the VIN, I questioned about getting a different body. All I have to do is keep the original body for inspection, after I replace it. The state will provide paperwork to 'transfer' the VIN of the CJ6 to whatever body I throw on it.
Question: if you are looking for a conv't, why not chop up your hardtop? Go to a canvas shop (boat preferred as they are usually cheaper), and get an idea if you can get it covered. Then chop it and add a roll cage. Your body shape shouldn't be too bad as along as the mounts are intact. Who really cares about the external sheetmetal? Take a look at Kerry's 91. No rear top, no doors, no rear seat, etc.