The second one should be doable with a wavetable synth, or any combination of square/saw oscillators where you can add a 5th (I think I can hear a 5th). With a bit of detune and a vibrato you could easily get at least close.
There is little Synth1 can't do as far as free synths go, and Sylenth1 is pretty much the best synth when it comes to analogue sounds as a whole, it has a wide variety of sounds and some of them sound stellar and so hi-fi.