Like there are angel networks (for investors), you are creating a startup network. More startups in your alley means more negotiating power to you. But as you present your entire bucket to investors, they would still like to choose individual apples wisely. Sounds interesting though. If you want to manage it better, try using my deal flow management platform @ startez.co. You can write to me email@example.com for more information.
Oh and did I tell you that I am working on a new startup? I have some seed fund committed, but don’t fit in all your criteria. If you get some initial success in negotiating good deals, let me know and I will join in the next 3 months. All the best !