Sorry for late reply, the aswers to your questions are;
1. i am using Sellacious 1.4.6
2. I would like to have product listing with pricing, email for price, call for price and query with no checkout option, we will have a booking form option. I am guessing that's why there is a option to turn off checkout.
My site is about Tourism, there are many variables to just add the product to cart. I would like to have both product price and a query form in each product instead of add to cart and/or buy now button. This will be very useful for my type of website.