Hi Frank & a very big welcome to Recreational Flying
I am in a similar boat (non current PPL) and have been investigating a return to the skies through the RAA chanels for exactly the same reasons. It's a real and exciting prospect with a focus on affordable flying for fun. I have received some wonderful advice in these forums, joined our local Aero Club, met with some of the committe & members (including our FI, Graham) and am working on a plan that fits in all round with myself/family, club & Graham.
My understanding to date is that some aspects of your PPL will carry over (RPL) and should attribute to some savings. To be competent is the milestone and that can only be assessed through refreshesher training and consultation with your nominated training organisation/CFI. This is of course, in addition to any mandatory minimum conversion training.
I too, still have a lot to learn and am taking a very conservative approach with intentions of concentrating on ground schooling in the interim. Primarily brushing up on any changes with human factors and refreshers on BAK & flight planning/navs.
We've waited this long to get back up in the air, a little longer spent wisely, will do more good than harm. I know I would rather spend a little more time getting off the ground and having a little more time to come back down again rather than rushing to get up and coming down too quickly
I wish you the very best for the exciting times ahead and can only envy you for the prospect of building/owning your own flying machine.
Regards
Roy