Guys,
That airplane is a money pit if it has not been flying for a long time.
1. No way that the AD's have been complied with, otherwise it would have had a fresh annual and been flying.
2. 5 years on the props for overhaul, so its due.
3. Tim hit on the engines. Drain the oil and check it but would not be surprised as he mentions that they would need some work.
4. Radios are probably NOT legal unless they were brand new and top of the line when it was last parked. The frequency limitations have been closed up and old units are not legal to transmit any longer.
5. Worst thing, as well as one of the things that I love about the early C310's is the exhaust system. Its the "augmentor" style of exhaust where the pipes exit into a duct in the wing and fumes are pulled out the back. Problem is that fumes are corrosive and if the plane has been sitting for a long time there is a very good chance of its needing extensive work in the exhaust ducting/wing bay area. Remember that this is right in the same area where the landing gear mounts, so you do not want any weakness or corrosion here. Look at the next to the last photo and you will see the retangular outlet for the exhaust on the back of the wing.
Other than this its a very nice airplane and would love to have one. The old IO-470 engine is plentiful and not expensive, so thats not an issue.
If you are getting the plane for a good price, or its been left there and you are buying it for storage fees, thats one thing but otherwise I would look for a flying one otherwise. You can find them for $30-50k on
www.barnstormers.com Getting an old one back up very well might cost $40k in repairs alone if you have to overhaul both engines and props, and stick some radios in it. If you are doing much of the work yourself, then cut the costs by 40% but it would still not be cheap.
I grew up watching Sky King, so the C-310 has a special place in my heart...