You quoted before my "not so ninja" edit 
-Is this stull true (from website) "The cost of each event shall be $30 for non-SCCA members and $20 for members" - that'd be good 
-How many runs?
-Do I need to do/know anything else?
Yep 30$ for non SCCA
There are loaner helmets 6 of them... I use em

Day starts off w/ registration
walk the course
Driver meeting 10am (saftey and upcoming events)
then ya either do 3 laps/ or work the course while the other half do 3 (stock and prepared generaly race fist the street and mod race second)
then ya switch
Quick lunch break (Bring a cooler w/ some food and water as there isnt much around the area to get food and little time)
then work or race for 3 more
and switch
All done by 3-4pm normally Trophys are given out around 5pm after funruns(2$ each) are finished they still give ya times but dont count towards points/trophys
Working the couse is easy just stand in a designated area and when a cone falls run and place it back upright run back

Quick list of stuff to bring:
Cooler w/ water! LoL standing in sun all day!
Some chips/cookies
A rubermaid tub to throw everything from your car into (floormats, any tools) or just completely clean your car out the night b4
And directions FMCC is seriously in the middle of
NOfmcc
WHERE!