Oh OP, I can feel your excitement - I have everything crossed for you!!
We were looking for a house for five months and suddenly one came on the market that needs a lot of work but it's absolutely perfect and unlike anything else we'd seen. We went to see it and offered full asking price on the spot. We were the first viewing of the day and the next people had already arrived. No chance of stopping the rest of the viewings for that day, even if we'd offered more.
We ended up in a best and final bids situation with three of us pitted against each other. It was AWFUL. We had to wait from the Saturday until Monday evening to find out.
I think we were JUST about the top price, but the feedback we got was that they picked up because of our circumstances. We're buying this house to build an annexe for my DM and there's already a small annexe at the side, with room to extend it. We didn't realise but that's what they did with the house originally - used the annexe for an elderly relative. So they picked us because they understand how hard it is to find that kind of property and loved the idea that we'd be using it for that reason.
I completely embarrassed myself on the phone to the estate agent because I was so excited - when I rang a couple of days later someone completely different picked up the phone and said "Ooooh you're Spiders - your name has been bandied around the office quite a bit in the last day or so!"
Other people will have better/different advice, but we showed our hand from the start and the estate agent knew how much we wanted it. I explained our personal circumstances and how much we wanted the house, and the reasons why, and I explicitly asked him to pass the information onto the vendor when communicating our bid, just in case it made a difference. And it did! Our vendor is lovely and we're nearly at the point of exchanging. I really really hope this works out for you!!