I'm one of those with a hyphenated name--with 2 middle names! My legal name reads like a law firm;)

My simple opinion is: You've put a lot of thought into this. Yes, there may be some social issues with expalining this, but it seems that your reasons make good sense for you. We Americans continue that independent streak that is our ethos and since it is, in the end, YOUR name--and if you are willing to deal with the paper work and possible conseguences, so be it.