Mike,
I'd look closely at the All West Apartments in Westpunt:
http://www.allwestcuracao.com/ I took a few photos of a unit that I toured in April and thought they would make a great place for a single diver or couple:
http://honeymoon2.smugmug.com/gallery/4706483_Noe6q#278276779_hLbTi
They are right on a lovely beach, Piscado, "Fisherman's Bay," where a number of fisherman bring in their daily catch:
There is an excellent reef for shore diving directly in front of the Apartments, where, on the healthy, colorful reef:
you will see Neptune:
lots of scorpionfish:
and plenty of macrocritters:
as well as 2 seahorses just off shore:
You are also just a stones throw from Ocean Encounters West
http://www.oceanencounterswest.com/ and their outstanding shore diving site at Playa Kalki, "Alice in Wonderland:"
Their professional and friendly dive staff will take you to some of the best dive sites in Curacao:
And, on the weekends, you can walk to Sol Food Restaurant at Curacao Sunshine Getaway
http://www.curacaosunshine.com/pages/sol_food.htm for some of the best food you will ever eat, and reasonably priced, too! In fact, in you send an email to David and Sunshine, I'm sure they would be happy to schedule a few dives with you:
safe diving, alashas
http://honeymoon2.smugmug.com/