You're right, I read something into your description that didn't exist. Sorry... let's try again, starting with the NO BUS message. If we can find the reason for apparent loss of communication at the cluster, we might solve some of these other problems at the same time.
NO BUS in this case probably means just that -- the cluster isn't getting a PCM message, but it may be that the whole bus is down. This model year uses the 2-wire Chrysler CCD bus network, which consists of two separate data circuits, both of which operate on a 2.5 volt bias. Let's begin at the Data Link Connector, which is the handiest place to measure CCD voltage. That's the same connector you use for your scanner.
You'll need a digital voltmeter for this, because analog meters don't have the internal circuit impedance to read sensitive circuits of this sort. Set your meter to 20 volts DC, find a good ground source. We'll be testing the third terminal from the left in each row on the DLC with the key on.
A good CCD circuit should show a voltage between 2.4 and 2.6 volts, with the digits to the right of the decimal "dancing"... changing rapidly... as data streams past. Any voltage above or below these thresholds will spell trouble, as will the lack of rapid change in the tenths and hundredths column of your multimeter.
I don't know what to make of the complete lack of a MIL illumination at key-on or during your cluster self test. CCD messages are used to turn the MIL on (as requested by PCM), but the default is normally to have the MIL ON if no signal is given. It's very likely that you just have a bulb outage since pretty much everything else lights up, but we'll see.
I think you said that your ABS light is on and if so, does your speedometer work? The vehicle speed reading is taken from ABS, transferred to the PCM, converted to a VSS and then shot over the CCD bus to the cluster, so if you have speedo, it means CCD outage isn't universal.