If you feel the need to eq the masterbuss during mixing i think it'll be wiser to try and 'fit in the mix' and try to get as good as a mix as possible, without driving yourself nuts ofcourse ;-). If you feel your mixes are to muddy/wobbly you might want to try using more compression during the mix stage to tame that. I always first try a compressor before even eq'ing the bd or bassline. Try experimenting with sidechaining the bd and bassline also to get a tighter lowend.
Forax is right, it's not a crime to eq and compress the final mix in a daw, just don't slam it with a limiter/finalizer. I think this actually works better especially if you don't have some really nice compressors/eq's to use on the buss. Some plugins basicly sound better than the budget gear most of us can afford (i'm thinking waves, PSP, sonalksis, flux etc.)
Re: cutting the bass, i think your to high up with 35hz, just use a 6/12 db hi-pass filter at 20/25hz to clean it up a little and you'll be fine. Add a touch of compression, couple of db's, to get the level up and maybe boost lowend somewhere between 60/180hz with a tight'ish Q to give your bd/bass a little more punch if you feel you lost lowend with the hi-pass.
No, there are stand alone linear phase eq's, still completely digital of course. But you'll need to take out a mortgage to get a good one (weiss).
DBX 242 or Aphex 109 might be a good starting point for your search and won't break the bank.
But if you don't have any compression to use during mixing yet, i'd first go that route.
Gast..!