Mate I've never been to Bulman so I can't comment on the time/distance.

Most motels and hotels are pricey during the dry. We stay at the Marina View appartments in Cullen Bay. $150 for a two bed appartment (during the wet) There is under ground secured parking and if given notice I wouldn't think a boat is to much trouble.

I may be working on those days but I'll see how we go.