House Costs please sense check for me!

[CooperLooper]

Hello. Our house is on the market at the moment and we've found another house we'd like to buy.

The market is really slow in our area at the moment and our house just isn't selling. I'm working out the costs associated with buying/selling at the same time as we're going to need to reduce the price of our house, and I want to make sure I'm not overlooking any hidden costs.

See below breakdown - have I missed anything off? We'll be paying off a HTB loan with this sale too.

Sale Fees (inc solicitor fee, transfer fees, ID checks etc)
Purchase Fees (inc searches, SD and SDLT fees, bankruptcy searches, drainage etc)
Mortgage valuation on the new house
HTB valuation on our current house
HTB Redemption Fee
Estate Agent Fee
RICS Home Buyers Report

Have I missed any costs off? TIA x

Actual moving costs, ie a van or a firm to move you.

Cost of Royal Mail redirection so that post goes to your new address.

New house expenses ? Those things which you HAVE to do straight away - maybe the carpets are horrid or sellers take all the curtains and lampshades with them? My seller took 2 loo seats with her - she had the special built up ones so I had to spend an extra £70 I hadn't budgeted for on new loo seats!

Locksmith

Deep clean of old house maybe? I know some people do this (I didn't!)