Sound advice above. Personally I'd intially route east of sheffield perhaps turning at the "Concrete VOR" of Emley moor TV mast (1924 amsl). This will keep you well clear of the Manchester TMA. If flying during the week contact Warton app first after Leeds. Inskip VRP is a number of radio masts on a disused airfield - can be surprisingly difficult to spot in daytime. There are a couple of gasholders at approximately the right position for a 28 right base join/ 10 downwind join.If an easterly wind the final part of your circuit will be over the sea which may/may not be a novelty for you.
Hope this helps.
Malcolm