Today's theories are constrained by so much observational data that an idea sounding "solid" or plausible at first glance just isn't enough. There are many plausible ideas that have been and are being tried all the time. The proof is in the pudding, however, which is the math. You have to show that the physical model actually predicts what we observe in quantitative terms, and is in better accordance with the observational data than the existing established theories. If you can do that, great. Otherwise, mere ideas don't yet amount to much.
See, I think that's where things just need to be cleaned up and pieced together here. Dr. Priyamvada Natarajan (https://physics.yale.edu/people/priyamvada-natarajan) proved mathematically that direct-collapse SMBH in the early cosmos is possible, which Gough mentions and links to. But I agree that these elements need to be assembled into a larger, cohesive model that can be studied and ran through simulations.
However, the question remains as to how to gather experts and convince them to work towards this without some sort of ideation phase, which is, to my understanding, the phase this work is currently being presented as. A "Hey Science, come look at this, please!" invitation.
The way you convince scientists to work on something is to convince them they can get grant money to do it. fyi calling scientists Dr. Is weird. I have a PhD but If someone called me Dr. mnky9800n I would tell them to stop. Honorifics don’t respect me they alienate me and I prefer to feel like everyone is colleagues and equals.