Some model railway shops will buy part or whole collections. I know that Rails of Sheffield buy second hand items and, I've seen some places on mainland Europe advertising the same also. No point in holding onto stock that you're not going to use. When I've sold items in the past I've done so on the basis that they are of no modelling value to me and was better off selling them. Some of your HAG Re 460s maybe more valuable than others - depending on which advertisement they carry. It'd be worth checking out eBay to see what the going rate for second hand HAG items are going for so you have some idea what you should be getting. There is a classifieds section on here also, you should check that out but, the market for continental model railway items in Ireland is quite small.