ABS light - the others are probably right. ECU kaputted. Change it is the best way.
As for the rest of the problems;
Give it a dose of Redex in the fuel tank and when you do an oil change put a can of Wynnes flushing mix down its oil filler neck the day before the oil change and run it till its good and hot. Get it hot before you drop the old oil too. I change the filter twice to make sure, once just before I add the Wynnes and then again when I change the oil. You will be surprised just how much crap comes out!
Use a decent semi-synth oil, do not be tempted by the cheapos or you will go rapidly back to square one.
As advised, clean out the breather system as per the Guide section, no shortcuts, do it all. That may just result in your camcovers not needing to be removed. If they have to be use only the genuine VX parts or you will most likely have to do it again in short order.
You probably already know that there is no substitute for a decent service - Migs are temperamental that way.
I wish you well with your new Mig.
GudLuk