I agree with others that four to five sessions lasting only 50 seconds each for an entire day "racing" just does not give a good return on investment of either time or money. Hillclimb 4-5 minutes on track for say 9 hours investment inc travel time, v six 10 min sessions for 11 hours investment inc travel time
Not to say it's a bad thing to do, quite fun. But so's go karting and that's a lot cheaper.
As for helping with track prep for wakefield, they are really different things. Come to a SAUNSW trackday, they are your best way and very newb friendly (about 30-40% newbs). Comparing Hillclimb to track day. Braking is totally different, hill climb you want soft brake pads that brake from cold, track day you want long lasting brakes that work when hot, same goes for tyres etc. My first hillclimb I nearly ended up in the trees as the brake pads were track ones, fine by the end of the lap. Basically a hillclimb take a normal car, a track day you really need some harder wearing parts.