What does a 3fe truck has to do with the discussion? The idea here is to compare identical trucks with the only difference being RHD/LHD. How much do you think a clean, very low mileage HDJ80 (LHD) would fetch in your state? Probably at least double of what you paid (not to mention that it sounds like you overpaid for yours).
I've bought and sold 2-3 dozen 80's of the years. Both RHD and LHD. Gas and diesel. And i'll double down on what i said earlier - price difference between 2 very similar trucks with the only difference being the LHD/RHD will be 50% AT THE MINIMUM. In most cases much, much more. The only exception to this might be completely trashed, sub $10k cruisers.
RHD owners in this thread are getting way to defensive and delusional about the fair market value of their trucks. RHD is the cheapest admission ticket into the diesel crowd. That's the only reason people in North America would consider owning one. There's virtually no one in North America in the market for a high end 80 that would ever consider a RHD.
Is RHD impossible to drive and get used to? No, absolutely not. I've owned and driven multiple RHD's. But it's a pain. And drive-through's is not the serious issue here. The main issue is safety. Passing people (in the opposite direction lane), and making left turns is WAY more dangerous. Getting t-boned while making a left turn at a traffic light is already one of the most common types of accidents. With RHD, the chances of this happening are increased exponentially (unless you love sitting at each left turn until the light turns red, and getting flipped/honked at all the time. And if/when you do get t-boned, your chances of significant injury/death are exponentially higher as well, since you're sitting on the side that gets hit.