Number 2: the Buffalo mob can rival with the 5 family on 1950s/1960s due the control of gambling and drugs in nordest NY state and Pennsylvania but not with numbers due the rochester decina rebellion and the internal war;
Yes they was active in Erie and Northwest Pennsylvania
here the chart with the men active there:

http://mafiamembershipcharts.blogspot.com/search/label/Buffalo?m=0

Number 3: no,the commission stopped him because the other bosses was afraid that after the arizona the bonanno could had put his flag on L.A. And because bonanno wanted to kill desimone and made his son Bill boss of L.A.

https://www.maryferrell.org/showDoc.html?docId=94876&relPageId=32&search=Bonanno_40