Congratulations on your engagement! You and your future

Congratulations on your engagement! You and your future spouse have picked the date, the venue, the dress, and the honeymoon destination. The budget for the wedding is $25,000 and the honeymoon, 12 days in Alaska and then a cruise to Hawaii will cost an additional $10,000. Your parents have contributed $10,000 and your future in-laws an additional $5000. That leaves you and your future spouse to raise the additional money. Fortunately, the two of you are in no rush to run down the aisle, so you have 3 years to get everything together. You have found that the Navy-Army Credit union is paying 3.5% interest(compounded monthly) on savings accounts up to $35000 with only modest restrictions that you are certain will be met. 

A. How much will your monthly deposits need to be to pay cash for this event?

B. Using the initial conditions (in Question A) Create an amortization schedule for payments 25 and 26: (how do you enter it all in the financial calculator?)