[Miata] Timing Belt Change Questions

[CHRISTOPHER ADAMS]

I'm going to be changing the Timing Belt & Water Pump on my '99 in the next few weeks (80K). I got the kit from FM which has the front crank seal w/the seal set tool and cam seals. I'll also check the valve clearances while it's open, hopefully I won't need to hunt for shims. Anyway, what is the best way to change the cam seals?  And after doing this job is it advisable to change the oil out?

Thanks,

Chris A
'99 Red Miata Lap Dog
'00 Tundra