I looked at the fund (VFORX) here: https://investor.vanguard.com/investment-products/mutual-fun...

It looks excellent for your needs, and have an incredibly low expensive ratio of 8bps(!). Currently, it is 75% stocks, and 25% bonds. Don't worry about a bubble in the stock market.

EDIT (after reading many, many more negative comments below):

The problem with discussing your investments online, there are a million negative replies. No one ever says: "Yeah, looks pretty good. Leave it alone." I'm here to be that guy.