Sounds like you have a long way to go and a short time to get there.
Not sure that's realistic, have you done the math?
4% is a myth. You know it changes every day so you get a different
number each time you compute it. It would really be more helpful to
retire when the market's down so your expectations would be more
reasonable, you'd withdraw less and probably make it fine with a 4%
withdrawal rate. You don't make a bit more when it's up the day you
figure the 4%.
Diane will likely run out of money, she's using the 4% figured back
when she retired. She did get rid of bonds, you can't make it with a
bond fund with bonds paying 2%. She's really been sold a pretty
crappy portfolio and still doing what her advisor (salesman) says and
he's sure not selling her any no load funds.
I'm hoping we can get by a few years just drawing the dividends to
boost our total, we'll see how that works out though, Honey has a
mind of her own.