In reply to Reader_Rambles:
Maybe consider one of the coaching companies out there?
OR
do some reading, self coached climber etc?
But for either of those to work you need to assess where you are? AND where do you want to go?
trad?boulder?sport?winter?
obviously there is plenty of cross over but sport fitness and boulder fitness are definitely distinct.
If i had the money i'd start with a lattice assessment as a base line, set realistic time based goals to work towards and then look at what would get me from A to B.
But also you can never have enough core, flexibilty or general conditioning