Considering buying DVC - A few questions?

[DrMomof3]

So I have spent about a year actively reading this forum to learn as much as I can about DVC. We are a family of 5 that travels to Disney at least 1-2 times per year (usually more - I run a few runDisney races each year). My eldest child is turning 9 on Tuesday with a 7 year old and almost 5 year old. My husband and I are both doctors and are finally ready to be able to pay cash for a small-ish resale contract. We refused to finance a Timeshare purchase or we would have purchased sooner. We can afford the annual fees and we have been purchasing Annual Passes anyway so we understand about the increasing ticket prices.
I think we want either a June or August Use Year at Beach Club Villas. We've gone to Disney the last week in August for 4 straight years and I've run during January Marathon Weekend for 3 straight years. We're also traveling to Disney for February break this year. And, as the kids get older, my DH and I will enjoy an adult trip for F&W festival. Am I correct that those are the best Use Years for us?
I saw one contract come up last weekend which looked perfect but sold before I could ask my husband's permission. I'm thinking we can afford 100 points or fewer to start. I signed up to receive emails from the big 3 resale agencies but it seems that the contracts I would want are few and far between.
Any advice on finding the right contract faster? Is it just a matter of being patient and the right contract will arrive?
What am I missing in my thought process? Any extraneous advice or opinions?

Thank you in advance! I look forward to learning more!

Amanda