Hi Steve, as Sam mentions most of that should be possible. If you want to limit the number of attempts then you are better controlling this via Moodle (number of attempts allowed is an option in the SCORM settings).
Resuming should work fine with Storyline (make ensure you have the resume where left off option on, which is my default). I've never been 100% sure that resuming part way through a quiz works (it's been hit and miss in previous versions of SL for me; maybe fixed in SL2, but it could be Moodle causing the issue too!). I prefer telling users to complete a quiz once they have started.
Vispi.