New tires and a tune-up would likely cost about $300 USD. This is probably half of what you could sell it for. I had my 1977 CJ360T tuned up in 1999 and it took the shop 3 weeks to get the correct points, plugs, condenser, etc. If your bike is in truly excellent or mint condition, you might sell for $500-$800 USD. This bike was not very popular, hence there is little demand for the cycle, even one in perfect condition. Check ebay or collectorcartraderonline.com for pricing. See the 1977 CJ360T listing for a picture of mine. It is all original, except for the tires, plugs, battery, etc. Same as the 1976 model year except for the paint scheme. John.