I saw an "almost new" Prius on craigslist that looks great. It just has a salvage title... what could possibly go wrong?
I hate to be doom and gloom, but usually pretty much everything. In order to make a salvage profitable, you have to cut corners. We've seen Priuses whose HID headlights have been replaced with halogen bulbs in a hack-job set up. We've seen condensor fan fitment issues. We've seen leaking inverters. We've seen terrible body seam welds. We've seen unalignable Priuses with bad frame repair.
Don't do it.
If you need more visual evidence, imagine that the "new" Prius you're considering used to look like this. It takes a lot of work to salvage a $20,000+ vehicle.