If your MOC week is enrolled, you can book at 13 months now without moving up to the higher Select level - as a low-tier Owner you can still book 13 months out with points, you just pay a 20% points premium above the points you need to book at 12 months.
Assuming that you would have to pay something around $6-$7/point after the junk fees for 1500 points (unless you get the luck of the draw as GregT did), those 1500 points will cost you $9,000 to $11,000. How many bookings would you have to make where you incur the 20% premium to recoup that $9-$11K?
A 2BR at MOC requires 4700-7450 points to book depending on season and view, so that 20% penalty would be between 940 points and 1490 points, depending on what you actually were trying to book. If, instead of buying points just to reach the level where you avoid the 20% penalty, you just rented between 1000 and 1500 points to cover that 20% premium each time you wanted to book at 13 months, that will likely cost you $600 to $900 each time you opt to book at 13 months. So based on that, you would have to avoid paying that 20% premium somewhere between 10 to 18 times (again with the actual number depending on what you could buy the points for and what seasons/view you choose to book) in order to recoup your $9K to $11K purchase cost. Since you own an every other year MOC, it would take you 20-36 years to breakeven if you booked at 13 months every time.
So, bottom line, if you are enrolled, you can book with points 13 months today. So instead of spending $9K to $11K for points, just rent enough points to cover the 20% premium each time you choose to book at 13 months.