Evening all! I purchased an older home about 3 years ago and have done a good bit of work on it and am considering having the place rewired. The house was built in 1950 and has a two wire setup now. The service has been upgraded by the previous owner along with the breaker panel, but none of the wiring. The house has a partial basement and the crawlspace has been fully encapsulated so getting around under the house is easy and clean. Now my question is what do you think it would cost roughly to re-wire and is it even worth my time.

Side note the house seems to be wired poorly as turning the vacuum on while the TV is on causes a brown out; main reason I think the circuit design is poor.