Hi David, Welcome to Kartbook. I've done a couple of vids for people who are new to karting here, which you may want to check out. I'd say your best bet is to get down to the local club on a race day and see what people are running. You can walk up to literally ANYONE in the pits and they'll have a point of view you should hear. Canvass lots of people, especially guys your own age.
Oh, lastly, could you please update your profile to show your full name (including surname)? It's a policy of Kartbook.
Cheers bud, and welcome to the greatest form of motor racing on earth!
Can't tell you much about karting in Canberra but if Mark Webber started there it must be pretty good. Age, height and weight not a big issue, I was similar when I started 17 years ago and I'm still doing it. You might find a kart with an extended front an advantage. Both Monaco and Arrow are good starting karts and have extended fronts on some models. I also saw an awesome extended front on a Tony Kart recently ( Victorian racer John Stanic from Oakleigh Vic) so they must also make them. Probably best class for you would be TAG restricted- electric start, clutch - pretty easy to set up and most importantly have fun with. You can also grow with this kart and move into unrestricted with exactly the same gear. Unrestricted is quicker and you have to have experience before you can step up. Depending on your budget there are plenty of second hand kart/engine packages around or Monaco do a new package with kart, engine, tyres, chain etc etc basically ready to race in the TAG class for around $6500 look for the REMO racing website. I think Arrow have a similar deal. As everyone will tell you best thing is to go down the the local club watch some racing , ask some questions and as they say "Just do it". You'll love it. Good luck. FURZ