I just installed a bimini on Kinship last week. I ordered it from the store here at HunterOwners.com for about $360, which was quite a bit less than either West Marine or Sailrite. It went on pretty easily, except for a few things. First, when I drilled the holes for the aft stantion of the bimini, I hit an alouminium backing plate, I'm assuming that was put in place by Hunter for a turning block for a Geni or cruising spinnaker. This is great for making sure that the bimini stay where it's suppose to, but it made turning the screw in quite difficult. Also, look closely at the screws that come with the kit. The screws that are supplied to mount the eye pads are only slightly smaller than those for the bimini bows, and it's easy to get them confused.
Trying to hold the assembled biminy in place to measure for proper location would be a lot easier with an extra set of hands. My 1st mate fell ill on the day that I did the work, and it was a weekday, so the marina was pretty much desserted.
Also, there's a mention on their web site that they recommend shipping it to your marina, as they are large and ship with motor freight. Ours came in a box about 5' long via UPS.
Other than those minor issues, I'm pleased with the bimini and the installation.