I don't think I can itemize it like that.
I can tell you that it took nearly two years for me to feel comfortable enough with Possibility to consider more than a hug or a friendship kiss. Some of this was due to my being new to being actively poly and partly due to a HUGE bump (it would have bottomed out a HumVee) in the road very early on in our 'getting to now you' stage.
Late last year we had to take a life-kicking-you-in-the-teeth break for several months and are just now talking about starting things back up.
To summarize, I go slower than a snail with relationships. I've been burned too many times to go any faster.
There are as many ways to do polyamory as there are people practicing it!