To be honest, I can't see any of those options being hugely helpful.
Tu-16's are the most likely to be supplied, but as others have pointed out the IAF will probably make short work of them. That's not to say they couldn't drop some bombs on cities, but I doubt it would be enough to have any real effect. The Tu-22 (I presume you mean the Blinder rather than the Backfire) is more of a challenge for the IAF, but it had problems with serviceability at the best of times IIRC. Again, I'm not sure the Egyptian ground and air crews are up to the challenge of making either of these bombers a real threat to Israel.
The ballistic missiles couldn't realistically be stopped by Israel without the equivalent of Scud-hunting missions by the IAF, but Egypt would have to launch a lot of IRBMs in order to achieve much. Scud missiles of some sort are probably the most likely types to be supplied. If fired in large enough numbers at cities they might cause a moderate number of civilian casualties - early Scuds had an appallingly large CEP, so they're not really practical for precision strikes. Against that the warhead isn't particularly large and I imagine Israeli radar would provide at least a few minutes warning of incoming attacks.
The major effects I see for any of these options are firstly (and perhaps more importantly) the diversion of IAF effort away from ground support and air superiority tasks. While the bombers won't last long against fighters, as long the threat of raids continues (or as long as it's hunting Scud's in the desert) the IAF cannot put it's full weight into other aspects of the air war. This might have some implications for the struggle on the ground.
Secondly, especially in the case of the Blinder and IRBM attacks, there won't be a great deal of warning for the targets. The need to be constantly ready to take shelter might have an impact on the activities of those in the target areas. I don't imagine the psychological impact making it any more likely that Israel would give in, of course, in fact it would likely have the opposite effect. Still, it might have some economic consequences.