Please Help!

The stats: 1996 Sundance Calypso, 240V, Two Pumps, Serial #ocl3600-cl17457-0596.

What is the ideal replacement pack? Can I do it myself? I am a fair handyman, but electricity is a weak are. Any and all input apreciated!! Attached 3 pictures, hope they will help.

Pictures would be a great help, unfortunately I don't see any attached to your post, however knowing sundance spas as I do I can say that replacing the pack will not be easy, sundance tends to put there stuff in tight spaces because they don't want you just that. Electrical on any spa pack you choose will be easy and shouldn't be something to worry about, I reccomend calling 813-235-4501 and getting information on what you need. (you will probably need to send them a picture for them to get the right idea)