Alright, I have the level 5 thing for you, Real simple.
1. Create a new event. (The person offering the job/quest)
2. Insert an event command (2nd Down on the right, Variable operations.)
3. Select the variable you wish to use, in this case I will use variable '0001: Hero Level'
4. Make operator as 'set' and tick the hero box, select the hero you wish, and make the second scroll box Level.
5. Create new event command (8th Down on the left, Conditional branch.
6. Sleect variable, asnd choose your variable. For constant select '5' and for the integer (Or w/e it's called :p Select '>=' (Greater than or equal to.)
Hope this helps. (You should be able to edit this easily.)