Your money from the house sale is going to be after tax money, as opposed to your 401k pre tax money. Do you have any other income source like pension or similar? Does the second rental provide nearly pure income since the house is paid off? I assume at some point in future you and your wife will get SS? Your plan is to live in the rental for a couple years and then sell it? Or it will be your permanent home? Reason I ask is that after your current house sale, have you used up the lifetime limit on house gain you can exempt from taxes? If so then if/when you sell the rental it will not be any tax advantage, it will be all cap gains taxable.
It sounds like you have enough income from your working now, so no need for access to the money is required. How long until you retire and may want to access the after tax money vs withdrawing from the 401k? No matter what, with your high 401k it will be a major RMD issue, so it may be good to do some withdrawals from that while keeping an eye on tax rates.
On to your original question, if you have no need for the after tax money for a longer period of time like 10 years or more, then I think the 75/25 AA is good. If you might want to tap into the money sooner, then it might be better to be slightly more conservative. No matter what it sure seems you could quit working now as you have considerable assets and unless your expenses are very high, it would be easy to live off your current savings at a nice std of living; even in high COL Calif.