Your looking at £10,000 for a days work,Unless your a top named SEO .I would agree with Iodine.Maybe your price point should be £99.If your considering 40 places.
I am always suspicious of SEO course as I can only see them teaching the very basis level,which is in the public domain anyway.
Personally I would not teach SEO as I would consider it cutting my own throat.
Alvin