High idle revs to 5000 and back. Can I make it to the shop?

[zfail]

I have a 1990 300zx NA. After starting the engine, the idle is at a low rumble that then revs all the way up to around 5000 rpm and then back down. It continues to do this and there is also white smoke involved. I have done a fair amount of research using this gracious site and have several ideas as to what the problem/s is/are. All that being said, i am nothing close to a mechanic and am running short on time (have to move by the end of the month). I really don't want to have to spend the money on a towtruck to the shop but also don't want to do further damage. So, am i good to drive it a couple of miles at most or should I bite the bullet and call the towtruck?
Many thanks

[ThisIsSparTTa]

Pull ECU codes. Check TPS and MAF. Clean IACV connectors. See if you can borrow someone's ECU to swap into yours temporarily. Look for massive vacuum system leaks.