Mark at D&D is a straight shooter and will deal you right, if you go that direction. Talked to him extensively about my 03's engine issue and once all of the cards were on the table...he agreed that the engine wasn't worth rebuilding. He seemed sincere about only making the rebuild happen if it was worth doing and cost were within reason, never got the impression that it was just a money grab. Now, maybe he was a little more considerate...since I live around the corner and he'd have to deal with me face to face...if things got out of control (cost wise or issues). Granted, I've never read anything negative about D&D anywhere on the web. Anyhow, that's my two cent on them.
When I was down at Eric's place (4X4 Trailhead), he showed me his conversion and it looked pretty clean. We didn't talk to much about it, but he seems like a straight shooter too. He's a one man operation, I believe, so his work load is tremendous. But, he seems to have the energy of two people...so your wait may not be awful...if you go that route.
I'm of the opinion...if you like a certain vehicle and you want to make it the way you want...knock yourself out. It's your rig, it's your money, it's your life.
Good luck, with your decision.
Brian.