eCart5 quotes, sales and dynamic selling

Probably going to upgrading to eCart5 but: When you say "Allow customers to shop and simply provide a quote" does it give the online shopping customer the choice to buy products or apply for quotes, at the same time? I have a client who wants to add high value items to his eShop but you can't buy them, you can only make an inquiry for the quote. But he still wants to sell other items on line in the same store. Plus he wants his customers to be able to inquire about (IE ask for a quote) more than one item by adding them to a basket. If it's possible, how does that work in one eCart? Does the order my client receives contain two lists (sales and quotes), or one list with both. The alternative would be to have 2 shopping carts. One for sales and one for quotes. But this not only duplicates the work but also slows down cross selling. Which leads me to the last question, is there any provision for ideas such as "last item viewed", "other items you may be interested in" and "inventory control (automatically showing if out of stock)"? I can see how to begin to make this happen using DataAssist, just wondered if this latest version makes it any easier. Thanks...