Halfpenny Green, Sleap? Halfpenny Green has three (six if you count both ends) runways and Sleap has a little museum. Flying to Sleap would also give you good experience of flying through Shawbury MATZ.
No need to worry about it though, the ATCOs are unfailingly patient, polite and very helpful. Cosford landing fees are set by Strike Command and are, therefore, rather expensive
but the museum is great.
Just remember to take some cash with you if you wish to purchase anything in the cafe. The last time I was there they didn't have a facility for using a card except in the shop.