What it's worth depends on what you want from it ?
Obviously the 103 even in stock condition has more Oomph than a 96"
But is that enough for you ?
Have you ridden a 2011 103"
I have and they're nice but not as potent as my used to be a 96" built up 103"
Then there's the little matter of asking price.
If I had a stock standard issue 2011 H-D with a 96" motor and somebody offered me a 2011 103" motor for say $3k, yeah, that'd be worth it.
If they wanted anything north of $3,500 I'd be sinking that money into my 96, keeping my matching VIN and Engine # intact and ending being happier for it.
Bottom line is as with all things, it comes down to money. How much something is worth is how much it's worth to YOU. Not me, not Naitram, not d00d or JCZ but YOU.
That's all I've got given what you gave me to work with
B B