Hey everyone! I am looking for my first bike right now. Just got my permit and plan to take the MSF course in a couple of weeks (LONG waiting list in my area) I have been shopping around the used bike section and am a little underwhelmed by what I can find (craigslist, used inventory in dealers). Budget is under $2k which I know is very limited, but I know there are good deals to be had out there and I am really patient
I was looking at a Suzuki GS500 (early 90's) with close to 40k on the odometer at a local Suzuki dealership and aside from the terrible looking 90's splatter paint

and some scratching doesn't look like it is in too poor of condition. It looks like its been through the hands of a couple of new owners, but overall not bad. Dealer wants $1650 but I am going to try to offer them 1k in cash and see if they spring for it. I was just wondering what you guys thought about the reliability of the older air cooled Suzuki motors and if it would be too far gone at 40k miles to consider. I will probably head back later when I have more cash and have them fire it up for me and listen/check for any mechanical problems (clutch, rough transmission, brakes) but barring none I might give them an offer.
Also if there are any other places I should be looking for used bikes, feel free to let me know.
Last question: I went helmet shopping the other day and a salesman recommended I purchase a helmet with DOT and SNELL ratings $150ish vs a $70 DOT only helmet. I wore both and they both fit comfortably and were both full face coverage. If I ride I only plan on driving in town cruising and was curious to know if the SNELL rating is critical or not.