The last two times I have replaced the module, I have replaced the whole thing. I even sent in the complete abs module to have it repaired. Its very straight forward to remove and reinstall. However, a brake bleed is where the extra work comes in.
As for turnaround time.....
dietz99vcross sent in his for my repair on 2/20/13.....UPS has it scheduled to be delivered to me today 2/27/13. One week from ship to receive. Thats pretty darn good.