With a 14 month timeframe and definite plans for the money, I would put it all into a money market type account and get the ~4.5% interest they are paying now; which may rise some if rates go up a bit later this year. Or a 12 month CD. Conservative safe and positive return on the money, that you know will be there when you need it. I don't do Vanguard so no idea what those various funds you listed are.
too much risk to have in the market, if a recession hits or gets stronger, equities could go down. You don't want that for the short term money.
I used to have a handle on life, but it broke.
You can't spend yourself to prosperity.
Semi-Retired 7/1/16: working part-time ( 60%) for now [4/24/17 changed to 80%]
Retired Aug 2, 2017; age 53