I'd get the best pH mete you can afford. Automatic temperature calibration is very worth it. I went two years having to adjust for temp and finally spent the $$. I should have done it originally. Auto-calibration is really neat to. Beats fiddling with knobs or doing slope calculations. Make sure you get one accurate to .01pH, not one that just has the digits, but is actually accurate to that. Remember pH is a log scale so 3 is ten times more acidic than 4. That is why the small numbers matter. IMHO
I use the pH meter for titration, it makes it a snap. As you should get both numbers it is a nice synergy.
I have one of the original Vinmetrica SO2 meters and can vouch for its quality and their customer service, just don't know about their other meters.
Hanna makes a very good lab grade meter. You might try eBay. Often you can find a good surplus meter that with a new probe is as good as new.
Columbia Valley Washington