Wotts, remember that the most important thing to check and adjust is DC Offset. You have to be very careful adjusting bias current, as you can actually damage the amp if you mess that up. The screw pots typicall used for adjusting dc offset and bias can be a little wonky. But getting DC offset right will make an amp sound much, much better.
SO, that's a bummer for sure, but I know people who will make custom wood cases for the vintage Pioneer stuff that looks much better than the original. So if you decide the D7000 is a permanent keeper, this is a fixable problem ;)