I'm a 39yo old female and became self employed about 2 years ago. I have just opened up a solo 401k with Fidelity for the first time. I just put it the max for myself ($70k) and my spouse ($30k) employee. I plan to put in about 100K per year. I'm looking for low maintenance, set it and forget it, options. Any recommendations? Freedom 2050? EFT vs mutual fund? Thank you!