You can buy Dolmar parts from any of the fine sponsors/dealers here on AS.....I don't think parts is really a problem for ya at all....Just more ranting.
I will buy parts from my local Dolmar dealer because he stocks a large supply of them but I wouldn't hesitate to purchase them online.
Sometimes purchasing online is much easier anyway.....Here's a perfect example....My kids broke some stuff on their go kart so I call a local yocal and they say, yea we got that part and the other one will have to order. After a week of waiting and no part yet, I decide to stop in and pick up the one they got and see what the hell is going on. Well, guess what it's not the right part and then they say well that one we ordered, may take a month to get here. I tell em forget it so after a 1/2 hour drive one way and a week wait, I've got nothing but wining kids.
So I jump online find all kinds of places that stock what I need. Placed an order Tues, UPS tracking has confirmed Fri delivery......Much easier, cost less and definitely better for my health and the kids!
All you really need is a dealer close enough to purchase the saw and service it under warranty, if necessary.......