Maybe consider purchasing an Air Law theory manual from Bob Tait or the like? Do a heap of self study re reg’s, get an online scanner and get your ear back into the RT. The flying side will probably come back faster than the other stuff. Go and check out the possible flying school and talk to the instructors and some of their students to make sure they are suitable. Avoid the academy epaulet wearing mobs, they tend to find it difficult to do anything other than follow a set syllabus and not good at refamiliarisation training.
also consider doing an endorsement, tailwheel or aeros can be a good way to get back into it. The sign off will usually cover the flight review. Not necessarily a cheap experience, but better than doing lots of hours in something you’ve already flown.