Welcome to AUB, Alan.
You certainly chose an excellent speaker to get started with (as CD says down the slippery slope!)
Recapping those XOs is a no-brainer, you'll hear vast improvement with that. Another thing to check is the diaphragms in your HF comp drivers. Depending on how they've been treated over the many years, they may be in good shape or possibly torn up. Another thing to check is the strength of the magnets on your drivers...the old Alnico drivers can lose quite a bit of their zip again depending on what they've been through.