"My plan is to move everything from Vanguard at the right time and put the funds into an IRA."
Keep in mind that as a spousal beneficiary you have the option of transferring the money either into an inherited IRA or into your own IRA. In most cases the latter is most appropriate but in some cases, depending on your age and whether you'll need to use the money (for example, before age 59 1/2 when the 10% early distribution penalty might apply) it makes sense to roll it over into an inherited IRA. So be sure to evaluate all your options. Best of luck.