Shevuot 16 - Shabbat May 17, 19 Iyar

Today's daf is sponsored by Elana Storch in honor of  Patti Evan's birthday. " יומולדת שמח to my dear friend and chevruta partner! Wishing you many more years of good health, Mazal and bracha. Loads of love." Are all the elements mentioned in the Mishna that are needed for sanctifying additional space essential or is it sufficient for just one of them?  This has ramifications for expansions in the second Temple period where not all these elements were present. This debate is dependent on  whether or not the kedusha from the first Temple remained forever or did it need to be resanctified in the time of Ezra.  From where is it derived that one who becomes impure while in the Temple will need to bring a sliding-scale sacrifice if one doesn't leave the temple immediately?  What are the measurements for how long one needs to be in there to be obligated in the sacrifice? Would it be the same measurements for one who did it intentionally and will be punished by lashes?