are there any reasonably cheap($100-$200) 6L6/EL34 amps out there? I wanted something that can get that vintage fender mojo in it.
any cheap EL34 amps?
no. el34's wouldn't get you that "fender mojo" anyway.
Buy a cheap fender, like the Champion 600.
you can look around for used crate v-series amps. they're discontinued and were pretty cheap retail before they were all gone. you could probably find a v50 (uses 6L6 tubes) for around $200.
6L6 amps are out of your range. However, a 6V6 amp is in your range. Look at the Fender Champion 600
How much of a difference is there between the 6V6 and a 6L6? a letter?
^They're pretty different, but you don't need 6l6s for a fender tone. I think the Deluxe reverb is one of the best fender amps made and it runs 6V6s. The blues jr does a great fender tone (more tweed than black face) and it runs EL84s. Ignore the tubes, listen to the tones.
There aren't many that regularly sell in that price range, but when they do, most of them are going to require a cab as well.