When the time comes, check out socialsecuritysolutions.com
Your situation is similar to mine in that my DW has a much lower PIA because she was a SAHM. In my case, DW is about 9 months older. Our plan is to have her take her PIA at her FRA for 9 months, then I'll file and suspend at my FRA and her benefit will be bumped up to her spousal benefit based on my work record and then I'll claim at 70 so if I predecease her she will continue to receive my higher benefit.
If somehow the investment results are poor, we can always start if we want anytime after 62.
If something cannot endure laughter.... it cannot endure.
Patience is the art of concealing your impatience.