[C320-list] Can I get a continuous 60' to 75' long 30A shore power cord for my C320?

[Utility Email]

It turns out that my new marina, the Edmonds Marina, near Seattle, requires that my shore power connection between my boat is one, uninterrupted, power cord from boat receptacle to shore power receptacle.  So I am looking for a continuos 30A shore power cord that is between 60' to 75' long.  Does anyone know where to find one of these?  I am sure that I can make one up, but I suspect that it might be costly. 

I like to set up my shore power cord to run along the end of the dock and my finger pier to plug into my shore power inlet on my stern (I typically position my boat bow in to have privacy in the cockpit at our slip).  This way, I just turn off the power, unplug, lay the coiled cord and receptacle on the end of my finger pier and go sailing for the day.  To accomplish this, I have always used my 50' long 30A cord plugged into a shorter 15' long cord with a water-tight receptacle cover.  My new marina will not allow this set up.  Hence my question. 

I have seen where others have installed a new 30A shore power inlet in their anchor locker. I am really not interested in doing this as the hassle does not outweigh the benefits for how we use our boat. 

Anyway, if anyone knows of a company that makes 30A shore power cords in sizes greater that 50' but less than 100', please let me know. 

Thanks all!

Dave

Dave Swanson
S/V Emily Ann
2007 C320 MK II, No. 1107
Mukilteo, Washington