Where are you located? yachtbedding.com does a great job on fitted stuff. While they ship everywhere they are located in Southern California and regularly visit South Florida.
We live in TN and boat will be in SC so shipping is not an issue. Thanks. I have looked at that website. Boat is in transit so I haven't seen it yet and am unsure about sizes.
They may have measurements in their data base. If not, they measure using a laser. There are sister ships here so maybe they measure locally. Not cheap, but have been very happy with them. Good luck!