Export/Import Custom Post types (moving products to a different installation)

This is probably more of a general question. A user wants to move a marketpress site to another website (basically consolidate their store with their blog). I intend run an export on the marketpress based site and then import the xml file into the blog-based site.

Assuming I’ve activated MP and the receiving site first (to ensure the creation of all the relevant tables) this should work without any issues, right? Is there anything I should be aware of before I begin?