It cost less to do this conversion than a new set of tires and wheels......
I think there are about 1200 members on here that would disagree with you about putting money into there truck being a waste.
And what makes the truck worth nothing? I just sold (3weeks ago) one of my 2003 4x4 converted 4runners for enough money to buy an FJ outright.
How is selling your 2wd for enough to put a good down payment on a 4x4 and then buying said 4x4 and being several thousand more in debt better than spend a couple grand and converting your paid off vehicle to 4x4.
Just because you cannot do the work, or understand the conversion, or see the value in it, does not make it the lost cause you are trying to make it out to be.
Sorry to sound a but cross with you, but your opinion (which you are free to have) goes against everything this forum is about.
Don't spend money on your 4runner, don't wast time with trying new things, and your vehicle will be worthless....what's wrong with you man?
You cannot take the money with you, and you cannot let it control you. If you really avoided doing things because the money you spend may be needed later......well, you will literally never have anything and you will die with stacks of cash, and nothing to show for your life.