Ok so for our honeymoon, I have decided on the Ritz Carlton Kapalua in Maui. I was hoping to take advantage of the Air & Hotel package. However, I am currently short on Marriott points. I was hoping someone could point me in the best use of my other points to make this honeymoon a reality for my fiance.

Please bare with me as I lay out the situation.

I currently have 300,000 Marriott points. I can exchange 370,000 Marriott points for the 7 nights in the hotel and 70,000 United miles, or 400,000 Marriott points for 100,000 United miles.

My fiance and I will need 160,000 United miles total for the flights. We just received a United card for 50,000 miles and a US Airways card for 40,000 miles. Assuming I can use the US Airways miles for a United flight, I will only need any additional 70,000 United miles.

All of this means that I will need an additional 70,000 Marriott points. I can have my mother sign up for the Marriott card, to get 70,000 points and get me over that hump. Or, I was wondering if someone has a better solution based on the other miles/points balances I have.

I currently have:
100,000 HHonors points
100,000 AAdvantage miles
50,000 United miles
40,000 US Airways miles
45,000 AMEX points

We will be flying out of MCO and into OGG on July 14, 2013. I know questions like this are asked every day, but I have done a ton of research, and now I just need someone more experienced to help me turn these points into the trip I have designed. Thanks in advance!