...2004 Raven II with 320 hours would be worth...
Worth more if exported with the £££ situation, even expensive helicopters in the UK look cheap at the moment.
Worth more to a flying school or commercial operator because of the low hours (they could burn through these before a rebuild at 12yrd/ 2200hrs).
If sold in the UK, I'd say around £150K + VAT if applic, probably not much more unless a dealer bought it and priced it up, but they would be looking to stag the asset.
If exported, may make up to £170K + VAT if applicable.
May also depend on fit out, but Raven II basic machines are quite numerous in the UK and there are less buyers around than 2004, and the price of Avgas is very high. A lot of overseas operations run the R44 on gasoline, so the operating cost is less.
Depends on urgency of sale. Like busses, you wait around then three buyers come at once....