I heard from DR Ben while I was at the Loesser office. He is being released today.
As for THE MOST HAPPY FELLA, we have assembled the entire first act vocal score, on Jan 10, 1955 the date that music was released to Don Walker for orchestration. Act One Scene Two, which was the most drastically reshaped in previews, has this sequence:
1. Stading On The Corner
2. Joey Joey
3. The Most Happy Fella
4. Hey Max! (photographer)
5. Tony-Marie Duet (Rosabella)
6. Nobody's Ever Gonna Love you
7. Tony's Trick ("Soon You Gonna leave Me Joe")
8. Rosabella (Reprise)
There are a couple of pages from the November 1955 vocal score where tony has along scene in Italian that is basically, "I can't send my own photo!" but I think that's been removed by Jan 10, 1956. The show opened on Broadway on May 3, 1956 and previews began in March, so they must have just gone into rehearsal on the beginning of January.
There's also a sequence in Act one Scene 3 called "Collar Business" after "Abondanza" where tony has one of the servants adjsut his tie and collar and his sister Marie pushes the servant out of the way and does it for him. She is such a pushy bitch.