It's really hard to give a price on the overhaul, especially if your paying someone else to do it. You can go on the Honda East website and get a ide of what the bearings, seals and gaskets will run. The overhaul I'm currently doing on my 92 will be my first on one of these engines. I've done my trx250r and my best estimate is around $200.00 - $300.00 for all the gaskets, bearings, seals, clutch lock washer and a few bolts that had buggered up heads. I didn't really pay too much attention to the cost because honestly I didn't care, I love the quad. You'll prob spend around the same on the Suzuki parts. As for if it's worth it........only you can answer that. From a resale stand point it's not worth putting a penny in a quad, you'll never get it back. I don't intend on selling my Suzuki or Honda so I do what it takes to repair them, keep them running and modify to my liking.