We're doing an ongoing renovation at the moment..2 years in in fact, and are doing 80% of the work ourselves as we have little money to pay tradesmen.
We had a large Edwardian ceiling pulled down yesterday in the master bedroom as it was full of stress cracks and could potentially have come down of it's own accord at any time.
We used a builder recommended to us from 2 lots of friends, and I was convinced they wouldn't be able to fit our relatively small job in this side of 2021. Amazingly they did, took 2 mornings of work to take down the old lathe and plaster ceiling, and re-board the lot out, ready for plastering. They also managed to save most of the cornicing, something that another builder had told me would be near impossible.
I think renovation is possible at the moment in terms of finding good tradesmen who don't have a 6 month lead time, but you need to hunt about for them.
The whole job cost under £1000, which for London I think is very reasonable. They did a great job too.
I would probably go for the house that needs the total makeover, but you will need deepish pockets as the price just to buy it in its current state is pretty eye watering. You could make it beautiful though and the beauty of starting from scratch is you can make sure everything is done properly and to exactly your taste.