I posted this in the audio forum and its kinda slow there

h:
hey all. im a noobie to audio so bear with me.
ok so i purchased a beater (92 accord sedan) so my integra can take a break from daily driving.
Basically I would like to put a descent audio system into it. Not anything fancy by any means.
Front speakers will be 6.5 inch and the rears will be 6x9's
just purchased this head unit
now looking at the rms(17) is pretty low and I wanted something a little higher so i would like to get a 4ch amp.
basically I dont know what rms I should be looking for from an amp. I have a friend selling a pioneer 4ch 35rms amp for 20 bucks. I just want a good one but dont want to be like damn i should of gotten higher after i just purchased one.
also what ways(3 way 4 way 5 way) speakers should i get for the front and rears? thanks all