David,
I don't disagree with your list if you add the bunkering to it. However, none of the sandbelt courses are links courses, Bandon/Pac/Old Mac are similar to UK and Irish links courses perhaps but not that similar to sandbelt courses in my opinion. Unless the only thing valid is the tight lies and sand based ground. Bandon trails is far too undulated and mountainous greens could also not be considered remotely similar nor could any of the vegetation.
Sandbelt in my opinion is unlike anything I've played in the US, course I've not played it all (which is a key fault in my story). If anything they could be similar to some of the great heathland courses in the UK, however, in my experience the ground is far harder and the greens much much faster. Plus there is to my recollection no heather in the sandbelt.