My house is probably about 220 years old, but because it's was a private estate house I can't be certain as there were no deeds until 1905.
I love it, but it's £££. We budgeted about £20k to do kitchen, 1 bathroom and a lick of paint / odd bits of furniture. We're at £60k and counting. This is a family 4 bed which doesn't have particularly large rooms. As others have said, expect surprises.
Do not rely on the survey to show everything, but do get the best survey you can. Ours showed no major issues. We had woodworm and had to rip out all of the rooms / flooring to deal with it, dodgy windows downstairs, damp, to name but a few. All of the work planned for 'some point in the future' had to come forward.
Admittedly were extremely unlucky and the previous owners were arseholes who bodged everything and we had to deal with the fallout but you will find something. Whatever you do, ensure you have some contingency.
You say it needs work. How much are you willing / able to DIY? (Every weekend wielding power tools is not great fun even if you had the skillset.). If you ar happy to muck in a bit to cut costs that can help. If you would 'get someone in' to out up a shelf or paint a room, you might struggle if the budget runs low and you find yet another job.
Also I don't know if you have DC. We don't so we could effectively live in a building site for a time, but it would have been impossible with kids.
Sorry to sound negative, but your post reminded me of myself a few years back and as much as I love my house now, if I was doing it again I would either have saved for longer or bought newer house as there were a couple of years of hell getting here!