I have a buyer for my Escort need to decide by Saturday if I am going to let it go

,
I dont need to sell it but I dont drive it any more,
My options are,
Towards Workshop,
Or Biuld on House,
Or another car,
Somebody did a very good job on convincing me not to sell it today

,
If I dont sell it I am likely to spend over 15K on it as I wont be able to help myself

.
Mark