Yeah, I know what you mean. Unfortunately, it will be hard to sell the car for a good price, with it not running well. Even someone with the know-how is going to be nervous about paying good $$$ for a car with an unresolved problem like that. Now, if it's fire-sale priced... I know a couple of people in the Bay area that might jump on it. But I suspect you're not desparate to unload it. ;-)
Anyway, pulling the IP is not terribly hard - but the first time can be somewhat tedious. Figure 4-8 hours for a newbie. I'm sure if you start a new post asking for tips & tricks on OM603 IP R&R, you'll learn enough to be willing to tackle it. The only special tool you'll need is the IP lock tool (about $20-$25 from the dealer), and maybe the stubby 8mm socket ($5) to remove the fan/clutch. For parts, just a vac pump gasket, and a new O-ring for the block/IP junction, probably $15 total. Although if the pump comes off, I would re-seal whatever pump is re-installed (figure an extra $30 or so in IP gaskets). Removing the intake manifold makes things a LOT easier, but it can be done with the intake in place...
