A whole bunch of questions

Question

I originally sent this to you privately but I haven't heard back so I thought I'd try sending this again via the forum. I have a whole bunch of questions/shailos: 1. A number of siddurim indicate that one is to say the posuk "Yeeyu l'ratzon imreh fee..." right before saying Elokai N'tzor, but not all of them do this. According to your father, should I say the posuk "Yeeyu l'ratzon imreh fi...." after the last brocho of Shemoneh Esrei before saying Elokai N'tzor or not? 2. In terms of Shabbos, many siddurim such as Artscroll say that you should say (toward the end of the middle brocho): "V'yanuchu vah yisroel mekadshey shemecho...." on Friday night "V'yanuchu vo yisroel..." for Shabbos Shacharis and Musaf "V'yanuchu vam yisroel....." for Shabbos minchah. But a siddur such as the Birnbaum says you should say "V'yanuchu vah yisroel..." for every single shemoneh esrei on Shabbos. Which is the proper way? 3. What would be examples of situations where it would be OK to sing pesukim as a song "in it's time" besides "Eishes Chayil" on Shabbos? Am I correct in assuming that it's still asur to sing pesukim (except for "in their time") even when words like "Hashem", "Elokeynu", "Kel", etc... are used instead of the real names for G-d? 4. Did you ever get the complete list from your father in terms of what truly is kitniyos during Pesach? What else besides rice, beans, peas, mustard, buckwheat, and oats is for sure kitniyos in terms of Pesach for Ashkenazim? 5. According to your father, what is the minimum amount of time (k'dei achillas pras) one must eat a k'zayis of a solid and/or drink a revi'is of whatever liquid after having said the correct brocho in question? Thanks and I hope you and the mishpocha have a wonderful week.