Thank you kindly for both the upvote and your valuable response @celestal. :c)

This is a situation where one thinks that one can unlock a door which may prove beneficial to persons - and also may be profitably exploited by the entity in question.

Do I 'need' the entity in question? So-so.

With its assistance I'd not only have a lot more reach but could also likely negotiate a cosy reward for myself. Do I "need" it? Others need it more than I but with money I'd be able to put other projects into motion years-to-decades in idling. I am tired of being disempowered.

Does it 'need' me? Initially 'perhaps' but then not really. Still, without my initial input it is not likely that they would chance upon a solution themselves and if they tried it would take time - and time is money.

Due to the nature of the 'project' concerned I think that the wisest relationship would be an up-front pay-off plus support with the logistics of its running.

Of course, it is likely that my direct role in the 'project' would no longer be essential upon its setup - and any involvement might be upon a consultation basis, if that. Of course the entity will take that project places that won't be within my control and I might not be comfortable with the shifts concerned.

Thank you again for a great comment. :c)