My 98 accord has a few slow oil leaks due too age should I just buy a full gasket set and just replace down to the head gasket?

 

Nah, kinda a waste of money.
Those full gasket sets usually don't have all, or half, of the oil seals you really need to repair the more common oil leak areas.
Easily can spend $100 on one of those gasket sets and still not have anywhere near what you need.
Nah, kinda a waste of time to replace random gaskets
Best to clean off the engine, use a green cleaner(simple green/409) and preferably the high pressure soap wand at a coin-op carwash.
With the engine cleaned up. Take the car for a 10mind drive. Pop the hood and look for any fresh oil spots.
Common areas of leakage on the VTEC engines are;

• VTEC solenoid to base gasket
• VTEC base to head filter gasket
• VTEC oil pressure switch O-ring(where applicable)
• Valve cover gasket
• Valve cover bolt grommets
• Spark Plug well O-rings
• PCV valve seal
• Oil fill cap gasket
• Distributor O-ring
• Distributor internal seal
• Rear main seal
• Balance shaft seal with retainer
• Oil pump seal
• Oil pressure sensor

Of all those gaskets/components you might get seven of the seals/gaskets in a full kit. The rest will need to be purchased separately. Just those oil seals alone will run you ~$90 on a good day.
Either replace the seals with Honda seals, or use Victor-Reinz/Mahle seals and gaskets.