There is at least one loco I would be interested in. The Lima class 09. (The blue 6 wheel diesel) That is only if you want to sell it. I thought at first that it was a Wrenn class 08 but looking closer and it is a Lima 09. Just as useful.

I realize it is a bit battered and missing its buffers and a wheel nut from the looks of it. For me it has either narrow gauge conversion potential or potential to use as spares to keep a narrow gauge loco going that I have which uses the same chassis.
The collection may not have anything that rare, but it does offer fun to someone if you are not going to use it yourself. Some items may seem like scrap, but people do find even scrap useful for the parts so rarely does anything go to waste. Everything is useful and has a value.
I went to a toy and train sale to sell some of my collection as I am more interested in 7mm narrow gauge which uses 00 gauge chassis... So I have plenty of 00 gauge items spare that I am not intending to use. What surprized me was how fast card kits and small scenic items were being sold. These are rhe things I had assumed would not sell. How wrong I was!
But railway and model railway books and origional railway posters etc did not sell at any price. I offered some of the old posters. Not one sold and no one was interested. It surprized me because on TV they say they that old railway posters are saught after. No one wanted me to open them up to even look at them. Most of my posters are from British Railway days, or very early privitization E.G. Red Star Parcels poster and a large early Network South East map. Unfortunately they are too large to post so I can't sell them in here as I would have to post them. If it comes to it, I can always use the backs as very large sheets of paper!
But in regards to locos, coaches and wagons. They all have a value and even scenic items do.
What about seeing if there is going to be a toy and train fair near you and hiring a table or two and see what offers you get?
Budget modelling in 0-16.5...