The linex is definitely the least of your worries my friend. Aircraft stripper might remove it easily. Just call the linex shop and ask them how to strip it.
To me, it comes down to money. If I had the disposable income after savings/etc, AND there wasn't anything else I'd rather spend that money on, then yeah, I'd do it. But that's a lot of conditions!
Also keep in mind that you're unlikely to recoup your "investment" when you sell the rig, and you will need special insurance to keep the rig from getting valued at blue book if you get into an accident. In other words, with standard insurance, your jeep will be totaled by the insurance company very easily if you get into an accident.
The other factor is your intended use. Are you drawn to doing this just because it's cool, or do you actually want a pickup truck? If you want a pickup, obviously there are much cheaper alternatives.
Do you wheel a lot? If so, on what terrain? Because this lengthens the wheel base of the rig significantly, so it will be much less maneuverable and more likely to get high centered after the conversion.
I guess my point is, no pragmatic/logical person would do this conversion. So it comes down to the emotional side. How much would you enjoy the rig afterwards? Enough to justify the money?
For me, the answer is a resounding no. But it's a matter of opinion.