Well ok, maybe a stretch, but it's close- we paid $18k for our 80. I paid $13k for the 100.. do I have more than 5k more into it? possibly, but not that much more.
And in my experience everything but rear bumpers are the same or cheaper now than they used to be. Winches are less, sliders are less, fridges are less.. even gears are less. It's definitely feasible to build up a mildly capable truck on the cheap these days, even a 100 series.