Hi,
The product msrp will only display if you fill in the "retail price" field of your product.
So it could well be that you didn't fill it for one of the two products.
Now regarding the product page layout, in each product and each category, you have the setting "layout on product page" which allows you to select the layout of the product page for that particular product, or the products of that particular category.
So that way, you can have different layouts for different products displayed with the same menu item.