It should be a snap for you to fund it. If nothing else, just sell a little stock each year if you have to. You may want to sell the stock on which you have the most modest capital gain, although if it weren t for taxes, I d suggest you re awfully heavily weighted toward Coke. Given your modest income, made more modest by the mortgage-interest deduction and exemptions for two kids, etc., the tax rate on the gain will be minor. That s what you re doing by paying for a 30-year fixed mortgage.
Some people have to.
They can t afford the risk of rising rates. At your ages, more term life insurance should be very cheap, and ordinarily I d suggest with two young kids you buy more. But with fairly wealthy, loving grandparents, you may not need any at all. I also worry that you ve bought some kind of overpriced life insurance. That s not a very round number.