Traditionally, the Saturday races (2&3) are not for points.
The "Allcomers" races (1&4) looks like an extra race for each class cos there's not many classes at this meeting.
The Sunday races (5&6) would therefor be the championship races.
Some assumptions there, but that's the way it usually works out!
Races L2&L3 = £120
Race L1 = £25
Races L5&L6 = £120
Race L4 = £25
(same for "M" races)
Seems straight forward enough don't it?