I get it, I get it. You've saved up all this money and don't feel comfortable having it all invested because you might "lose" it. But, frankly having that much cash on hand is a waste. There are hundreds of posts on this forum and internet that prove cash drags down a portfolio. If you want to hold bonds immediately I'd still hold them in your 401k only (don't hold bonds in your taxable account).
Do you love what you do enough to work 10 more years at it? If you and your wife split things 50/50 (mostly as you said). Then have you done the calculations on how much you'd need in order to never work again? Let's do a quick scenario, say you and your wife spend jointly $50,000 per year - of which $25,000 is your share - now multiply that by 25 (the inverse of the 4% rule) = $625,000. If you want to be more conservative then you can use 3% (which you would then multiply your yearly spend by ~33 = $825,000.
From your OP, it seems like you've got ~$550,000 in investments, (insert amount here) in home equity, and (insert amount here) in rental income. Based on your annual earnings of $100-150k, you could likely add $75,000 to your nest egg over the next year. This would make you officially able to quit work in 1 year (and most likely less). If you're going for 3% SWR, then you're looking at a max work life of ~3.5 years from right now.
If you'd like to talk about why you want to keep so much cash on hand, maybe we could help you work through some of those fears?