It would be best for you to contact the BC PNP and ask them directly how much money you need to make based on your family size to be accepted. There are a lot of LICO tables in the report you have linked to, also based on the community size, other tables based on number of children in the family.
The LICO table used by immigration to determine if you can sponsor relatives other than spouse and children is here:
http://www.cic.gc.ca/english/information/applications/guides/5196E10.asp and scroll down to Table 4.
I don't think it's a good idea to lie to them about how much you make. Surely they will just ask your employer and find out.