@Howard / @aggi thanks for your input. I think that's the conclusion we came to: do all the things we can do without actually spending any money until they take it off the market.
What's your position? First time buyer, in the act of selling, in the act of trying to sell? If it's the last one then I can see why they're keeping it on.
We're first time buyers with a flexible lease, we're not in a rush but there's nothing stopping us moving quickly. I feel like we're fairly attractive buyers.