If you can get a rate of $139, DO NOT book a free room using SPG points - that would not a be an efficient use of points. Yes, you can definitely upgrade to a suite from any paid rate. I was told 10,000 points/night to upgrade to a 1 BR or Jr. suite, 20,000 points/night to upgrade to a 2 BR suite. The vast majority of suites do not come with Club Level privileges, although I understand there are a few Jr. and 1 BR suites on the Club Level floors (12 and 14 as I recall).
You can also book at your deeply discounted rates and upgrade to a standard Club Level room for 1,500 points/night.
I assume that if you wanted to upgrade to a suite on Club Level, they would guarantee it for 11,500 points/night.
Call the reservation line at the hotel directly to discuss these options - the SPG 800 number operators don't have all the details.
You can also book at your deeply discounted rates and upgrade to a standard Club Level room for 1,500 points/night.
I assume that if you wanted to upgrade to a suite on Club Level, they would guarantee it for 11,500 points/night.
Call the reservation line at the hotel directly to discuss these options - the SPG 800 number operators don't have all the details.