Would that be considered a structurally normal heart? I was given the same diagnosis. I'm not sure if I have "Classic MVP". Just that my cardiologist said "Don't worry. you have a variation of a normal heart. This is nothing. You can lift weights and go run a marathon if you want."
I was also very concerned about the diagnosis. Funny thing is they can never hear a murmur or click when they listen to my heart, it just showed up on the echo. Overall, I would not worry about this. I have met many people that have this and are very active. I go surfing, run 3-5 miles, mountain bike some pretty hardcore stuff, etc. I'm 32 yo, Male. I do avoid heavy weightlifting because I dont think its good even for completely normal hearts.
The classic quote is that there is a 1% per year risk in someone with severe mitral regurg waiting for surgery. If you have MVP with no significant MR, the recommendation is still no intervention. I think you might be over analyzing things.
There really aren't that many choices
-- surgery is not an option because you can't fix a valve that doesn't leak that much
-- the risk for sudden death is WAY to low for an ICD
--PACs in a structurally normal heart do not increase the risk of death
The question you need to ask yourself is what will honestly make you feel better -- your doctor has already reassured you that you are low risk for cardiac events. Your risk is very low. One way that I like to look at it is not to worry about risks that we cannot change -- in this is one of them.
I hope this helps.