Nick would know better than most, so would be intrigued as to what he thinks
But the fact it's not moved for nearly ten years, and not been stored in the best conditions, could be a can of worms.
If you bought it for £20k you could sink 5-10k I don't think it's worth £30k after?
The same old question will come up....that while having sat for a long period of time they will likely need a refurb due to lack of use and rubber perishing over time.