@BigDrew , what drew you to the Santa Monica series in particular? Are you specifically chasing that more vintage thick-shelled rock n' roll sound from the 70s and 80s?
I personally don't like the sound quite as much as the current Collector's Series. They have a different shell formula that results in a higher fundamental pitch and a "colder" sound. You may have to hit them harder to get them to sing to their full potential, and they don't have as much warmth and low end.
The Santa Monica kick drums don't have enough low end, so a 14" depth wouldn't be enough IMHO. I've always thought DW's Collector's Series kicks sound amazing though.
Just my 2 cents.