If you go for regional business, see http://www.aved.gov.bc.ca/provincialnominee/businessimmigrants/categories.htm you only need net worth C$400,000 and investment of 200k
In SK net worth 250k and investment 150k, see http://www.immigration.gov.sk.ca/entrepreneur/?Anc=7e8f4b1d-79b4-4120-8b3a-599d97fc7875&Pa=ebd9edd0-fecd-4503-b6f7-70a7366de4c4
In MB net worth 350k and deposit of 75k to the government which you get back when you fulfill your agreement to buy a farm or a business in MB, see http://www.gov.mb.ca/ctt/invest/pnp-b/qualify.html
According to the NB self assessment, see http://www.gnb.ca/Immigration/Information/Kit/Self_assessment_BP.pdf it looks like if you score full points for everything else including ties in NB, you could get in with no business experience and no money. However, you do have to submit a business plan that they approve of, see http://www.gnb.ca/Immigration/Information/businessapplicants-e.asp