How to Put this Closed Deal on Resume?

Left banking 2 years ago, unfortunately none of my deals closed (as is the luck of the draw). One sell-side deal I worked on I spent 3 months working with their corp dev team and created the entire CIM and financial model before news came out that the parent company was getting busted for money laundering and my BB turned down the deal afterwards for PR purposes.

I had a friend at different bank who called me and asked me if I was on XYZ deal and told me that my name (from the comments) were all over the CIM and financial model and they were just taking it from there and reaching out to buyers. The deal eventually closed with this other bank and I've been debating about putting it on the resume. On one hand, I did all of the marketing work other than the actual reaching out to buyers, on the other hand if I am asked about the deal, interviewers may think its weird since I didn't actually do the deal (but to me I did).

Its a similar concept of how some analyst will begin a deal and then it takes years to close, which another analyst picks it up. Its very reasonable for both analysts to put the deal on the resume. The only difference is that the other analyst is at a different bank. Thoughts on how to spin this or if I can reasonably add it to my resume?