Partnership revenue share uncertainty as test before any equity discussions, please help, urgent

Hi all,

It's brand new relationship to collaborate on work and fast moving situation and i want to be fair and informed about revenue share for this work as startup, new agency, unclear still. Sorry for rushed message, its moving fast.

Its starting with revenue share to test and see how things go. I contribute some things as a separate entity/consultant/marketing domain expert who designed some AI products and am able to acquire clients reliably with my marketing skills then they do all development and sales assistance. Details below please can you help with advice on contribution and revenue share thats very fair:

The "partnership" non ownership (rev share is best correct?) of delivering custom AI software development solutions to smb b2b clients.

1. As a domain expert i designed a product for myself and then others upsells and want to sell it to other biz, there is interest, its been tested as viable with my outreach which I do and now have 5 clients from last night wanting to meet or receive short video explanations before we meet (its my initial offer, a vid demo). I have designed the product or solution completely and have already developed mvp of the first product that i use myself and is immensely valuable to me.

2. I also acquire all the clients as an client outreach/acquisition expert and perform that entire client acquisition function and marketing up until sales call where they provide assistance/ a joint tech and marketing/product domain specialist (me) sales call, still to be discussed. No dedicated sales function but they have experience.

Then I partner with a great desirable professional development agency to deploy the solution and everything that entails hoping for a long-term similar arrangement that mutually beneficial and fair.

3. They also assist with the sales process to close deals, we both contribute on the sales calls but client generation and marketing up to the sales call is my contribution.

What would the fair revenue share be in a perfectly fair equal situation and what would it be if I wanted to be generous because i really want to work with them moving forward.

Also what would the equity split be if a new entity was formed later to formalize partnership and the contribution remained the same. I dont know much about this or what I should be doing in my situation.

As I understand searching revenue share online and a summary from perplexity I perform two of the major functions and they one so something like 30-40 them and the rest me?

But if i wanted to be generous and show my appreciation for working with me on this as they are high quality and i foresee more opportunity benefits and capabilities in the future due to their expertise and know they would deliver a superb job, would 50/50 be a fair split?

Or am I undervaluing/overvaluing myself,, can you not just offer the logic but advice as well based on the info you have, this is brand new and moving super fast, online info seems clear but i want mine to be super fair even generous for them so they are happy, but also not foolish or irresponsible from my side. Its all new to me.

Thank you so much!