Wow, you have a deep pocket I must say, I wanted to stash 1 BTC but I doubt that I can get it before the eventual bull run. I'm also doing DCA, but still depend on my capital that week or that month. But I'm still doing it slowly, as much as I can, or shall we can, invest what you can afford to lose. So for me probably a good .25-.3 BTC might be a good start for me this 2023 and up until the halving and maybe I will continue till 2025 and see how far can I go and hopefully was able to get that goal or even higher.