Depending on your budget, I got this reply from the GM of the property you're referring to:
[...]We will be happy to offer airport pick up or train station pick up at a cost of RMB1,500 for a Deluxe Limousine or RMB1,700 for a Buick Mini Van accommodating up to 5 persons. The drive from Hangzhou airport which is the closest airport to the resort, is approximately 2 hours.[...]
I'd probably look into a taxi option (maybe 700 CNY?) if I was in Hangzhou a day or two before going there.