Your amps would be a good choice for that size of place, so no worries there. Vocal mics at both are limited to SM58s though, so I always used to bring my own box of mics to provide some variety if I needed it. It's amazing how many bands spend thousands on their guitars, amps and drumkit but won't spend £50-£100 per vocalist on mics - I doubt I'd need both hands to count the number of bands who've had their own mics. If you want more clarity on lead vocals, a Beta58 is a very good place to start.
The problem with FX is that unless the soundman is *your* soundman and knows what to do for each song, you can get one FX setting at most (telephone, etc.) for your set. So if you want something specific for each song, you'll need to be doing that yourself.
And for reverb, do try to be specific for what you want with the soundman. One band particularly asked for lots of reverb with a reference to Pink Floyd - it wouldn't be my first choice of sound, but you know straight away what they're after.