Selling rental,what to do with the money

[sociopath]

Coke and wh*res.

And then waste the rest

[Jon39]

Probably best not to spent too much, until you have sorted the CGT.
Don't want a brown envelope on your mat in two years time.

Then just buy a pristine 2009 to 2017 era Aston Martin and keep for as long as you can.
Works of art, to enjoy (and drive).
You deserve it.