I had a 150-200 lb. vertical router that needed a mobile base.  I got the Delta kit from Amazon, and assembled it one evening using pine 2x4s that I'd ripped to the right size.  Let me tell you, this base works great!  Everything fit perfectly.  Typical Delta quality.  I'd bought some tool stands that were from another company, and I'd almost lost my temper putting the darned things together... nothing fit.  On this base, everything fit perfectly.