Are you convinced it's a good deal?
Run the numbers.
Do all the costs. Projected maintenance, taxes, and your added/lessened transtportation costs.
Is it what you both want? Old houses are a never-ending project! (Ours was built cira 1912.)
Can you afford to divert your resources (time and money)?
You need to come up with the questions and answers - it's your puppy!