I suggest you start with sharing the $ budget you intend to spend (on parts) and work backwards from there.
There are dozens of variables and possiblities depending on what you are starting with. In addition, keep in mind there may be pots and other parts (connectors, wire, power supply) that would be more beneficial to upgrade than just "caps". I know nothing about your EQs, but even the two different EQ manufacturers may have different areas/parts that could benefit from parts upgrades. If you have the schematics of the design, I suggest contacting the guys at Sonic Craft. They could look at the schematic and with a few photos of the existing parts give you an idea of where best to spend you dollars.
Kenreau