Keep yer chin up mate, get a track day booked and go for it, even if you need to hire a car for the first one. Another house will come along if this one falls through, the past is the past and it ain't ever coming back and will have no bearing on your future. The future hasn't arrived yet, now is the only time that exists so just enjoy that and get everything you can from it.

Now dust off the car, get some pics up and get working on it.