I¡¯d be *very* surprised: You need a relatively low frequency (1MHz or so) square wave with an edge speed << 1ns for risetime/BW check and adjustment and low-and high-frequency pulses (up to 1GHz) for horizontal timing with an accuracy much better than the 2465¡¯s spec, for starters.
The instruments you mention can¡¯t do that, unfortunately.
Raymond