That's about the cutoff limit or close to it, pretty straight forward for a 25 pt contract but decreasing less so as you near or pass 50. Retail $135 pp so roughly $7K with closing direct. Resale at $92 plus $450 closing (estimate) is just over $5K. The UY and points accounting as well as possible fee reimbursement could swing it one way or another. You would have spent more retail but not that much, would have had the points immediately with some additional possible benefits and qualified points. For a fully loaded contract with banked 2014 points and all other points intact, the choice is clearly toward resale. For a less favorable contract situation it could easily be a wash which means retail would be best. Of course there's also your time and effort as well as you're risk it may not be completed. And for some situations whether one can find what they want in terms of UY, home resort and number of points. In reality you've already gone through much of the negatives by this point, if you're saving $1-2k I'd proceed if it's a good choice otherwise. If you're just break even compared to retail, I'd bail and do retail. Don't forget to give a value to any points not present or extra points compared to if you were buying retail.
You said August and loaded I believe. So that'd be all 2014, all 2015 and all 2016 points intact to fit the qualification of fully loaded. Assuming you're reimbursing for dues for this year, that put your total cost at $5050+$275 (rough fees)-$500 (renting the extra banked 2014 points) resale but you might miss the banking window if you don't write it into the contract. Retail it'd be roughly $7K plus $$230 dues with the advantages of direct.