Theres a new Mark 45 Mark 4 in the U.S. Parts sheet and I don't think u get very good radar coverage or good SeaRAM coverage but I guess its doable. That VLS also may be a lot of extra top weight even with the lighter guns but I could be completely wrong and its probably doable.
Also I would replace the torpedos with the US ones as well as you might as well same with the SSMs
Lastly I believe you left AK-630 directors on.
Not bad overall though
but I'm not a huge fan of the concept