Well, with 5 individuals you would need to reserve a Two Bedroom accommodation. A 2B for a week in July at the Boardwalk Villas would run you 350 points per year. That's for 7 nights. If you want to go down to 7 days / 6 nights it would go down to 275 points.
A few comments:
All of the
DVC resorts are close to something. This is WDW, after all. The Beach Club Villas and Boardwalk Villas are walking distance to Epcot and MGM. Wilderness Lodge Villas are a short boat ride from the Magic Kingdom. Old Key West and Saratoga Springs are walking distance to Downtown Disney. Decide which holds the greatest desire to you.
Functionally, BWV, BCV and VWL most closely resemble "standard" hotels. The rooms are all consolidated into a single building, they have interior hallways, valet parking, etc. SSR and OKW are more "condo-style" developments. Rooms are grouped into smaller buildings. Parking lots are available right outside of the building. Give this difference some consideration when you are trying to decide on a property.
With the volume of points you are looking to purchase, you might consider buying at two different Home resorts--particularly if you go the resale route. You could get a 150 pt contract at VWL and a 200 pt contract at the Beach Club. In fact, smaller contracts are typically easier to sell than larger ones, meaning you would have a quicker sale if you ever decided to sell your DVC ownership.
In case you didn't pick it up elsewhere, Saratoga Springs is the only resort worth buying direct from DVC. Yes, they will sell you points at the other properties, but the costs are exhorbitantly high for a first-time buyer, IMO. In a nutshell, DVC will presently charge you MORE per point for the sold-out resorts than for SSR points, while you would get 11 more years of ownership with SSR.
Resales can take some time and energy to acquire, but the $$$ savings are significant over buying those same properties from DVC. And, if you find a contact with Banked points from the prior year, it can be a real bonus.
You will need to finance a resale purchase yourself--either with cash, credit card or other line of credit. If you buy direct from DVC, they will finance over as many as 10 years with as little as 10% down.
Hope this helps.