You are at liberty to make up your own checklists - my advice is to make sure you take into account the various Flight Manual Supplements that are fitted to the aircraft you're flying.
We did precisely that for the 407, starting with the manufacturer's check list, and cleaning things up to reflect our installed equipment and flow. For example, we have added an emergency float test and removed the particle separator line, since we have an IBF. Also moved the order of some items in the pre-start check list to make them more logical and reduce power consumption prior to start.