MKO 2BR OV Annuals are selling for about $8.5k now +/-, which is a great price! From what I hear, they are passing ROFR at that price. It may be hard to find a seller who will let go of one for much lower than that. Looks like one passed in 4Q16 at $6.8k possibly, per the ROFR Db (
http://www.rofr.net). These are a great price at $10k, excellent value at $8.5k, and a steal at $6.8k (likely at outlier)!
MM1 2BR OV Annuals are likely to be near double the price. Maui demand/inventory just drive that price higher than Ko Olina. Last one posted in the ROFR db passed at $16,200 in 4Q16. Most on RedWeek are listed at $18-19k. So, perhaps a $16-17k is within reason? I do think others stated booking high demand periods for MM1 floating weeks can be challenging, with only one week. Just be aware of that, if a concern for you.