If you can find a saw to rebuild, that's the way to go. Unfortunately bigger pro saws are non existent in my neck of the woods. I went the kit route. I have one of the earlier 660 kits. It had a few issue I had to work through. It runs good but a little stubborn to start sometimes. It's completely kit parts except for the decomp and control lever. The kits coming now are much better, they are continuing to improve them. I also built the Husqvarna 365 kit. I used an oem decomp, everything else is kit parts. It runs awesome. Cranks good, oils good, runs like a scalded dog. I am completely satisfied with it. There are tons of reviews and threads on these. Some good YouTube vids too. Afleetcommand has some unbiased reviews on these kits and also some of the complete saws.
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