If you are looking at Hawarden. Current Avgas price is £1.30/litre for based aircraft, Hangarage about £125/month and landing fee
£19.42 at weekend, slightly less in the week. They will insist on full insurance cover to £5,000,000.
You would be better off with the NWMAS rental aircraft.
Hen Ddraig
Time to spare, go by air