sHorty: New? unlikely. Genuine? possibly. Hot? Likely.
No offense, but genuine Trust/Apexi/AVO stuff starts at 1500 for the whole kit, maybe a bit less at trade.
Additionally, i'm fairly sure Trust don't make or sell separate end tanks, nor would AVO just sell the core. Why? To protect their name from badly assembled hack-togethers. Is the core stamped with AVO? Are the end tanks stamped with TRUST? Or did the person selling it just tell you that? Again i don't mean to offend; as long as the cooler does its job you got a great deal regardless of the make/manufacture.
I am waiting for an ARE cooler from QLD to come in about 2 weeks. I went with them (even though they are a bit dearer than other locals, but cheaper than a jap cooler) because they have a product that appears to be extensively researched and tested. As rb20-calais mentioned, they are renowned for quality of manufacture and performance. Bottom line is i know where the cooler is from and want to support the local industry.