I did the same and I’d done the ‘donkey work’ as I’d sold mums house before she died so her Estate was all quite straightforward. However, the costs were in region of £3,000. Worth every penny in my opinion and especially when I had a ‘difficult’ sibling who was also a beneficiary.I asked the solicitor to handle it all as I’m a beneficiary as well as executor, price range from £500 - to top end £1250.
To be honest it’s worth every penny after all we have been through. Plus no one can say it wasn’t done legally & properly. Make your life as easy as possible & give yourself a chance to grieve.