Doing an hour worth of reading and research on this forum will give you all the answers you need, seriously.
Thank you Jacob, the forum owner!
As for someone selling the "guides" -  I can not imagine what could be in there that your diligent review of the shop guidelines would not tell you. There are no shortcuts to quality reports, unless you think of preparation and organization as shortcuts. 
Frankly, as someone who completes 50+ hotel/travel evaluations a year, why on Earth would I want to "sell" my resources to others and create more competition, unless I am selling generic content?