The old idi's aren't all bad. Yeah they are gutless by todays standards but I've never seen one blown up. They are stupidly simple and seem to always outlast the vehicle they've been put in. They never came with turbos, but they're have been kits over the years to put a turbo on them. Banks still has their offering available. I'd probably choose an IDI over the powerstrokes, especially the 6.0 and 6.4.
It's definitely not a buying point by any means but I wouldn't shy away from it like other engines. Then again, maybe I'm just biased because I own one
. At 1200 bucks, I'd say it's worth a look. Just depends on what your time is worth.