I have applied for multiple MP Visas, 20K + 5K if you upgrade to gold. As others stated, concensus is 3 months between app submissions.

If you have equity in a home, about $170K in your case, you could apply for a home equity loan, withdraw $150K, and payoff immediately and get 5000 points / $10000. A day or two interest would be $100 give/take.

Both of these are talked about in MileBuzz.

Both of these will take more that 4 weeks. You'll find few offers that you can sign-up for and have bonus deposited in your account in 4 weeks or less.