16,500 BTU AC under the Helm Seat 3500 Open

[Adventurous Soul]

I am considering having AC installed under helm seat in my 3500 w/ hardtop . In SouthWest Florida it's a indulgence but a necessary one in the summer . I might even upgrade the 12,500 unit that is currently cools the cabin to 16,500 . My question is , will my 5 KW Westerbake genny be able to handle both AC units at one time ??? We have a few folks down here to choose from for installation . But this will be my first upgrade for CRACKERJACK .

Thanks in advance , .............. Rich