Re: Bimini Top
If you don't feel like the repair option, I've seen many a bimini part being ordered at my local marine supply store. It makes me think the part can most definitely be ordered, but without your boat specifics it would be hard to make a recommendation. That being said, I think the best bet, if you don't want to look at a repair, is remove the broken piece and take it to a shop and order it.
One quick question: Does the broken tube go all the way, over the top (left in your picture) and down the other side? If that's the case, the repair option will likely be much less money. If you are lucky, maybe you don't even need to splice in a new piece. Just cut the tube at the break and install the connector.