Not without an original shaft.
400 would be the high price of a 84 series (which is what it is) complete cue.
If it were from the 70's with a brass pin and pill bumper or even a earlier no bumper version, that would be a good deal.
Today you must be very carefull as Meucci has reproduced the gambler and a bunch of other originals. They all come with Black dot shafts and would be a dead give away if listed with the cue. I dont know for sure this is the case but maybe there is a way to tell. There are a few cues on ebay right now. Here's one
I haven't checked them out yet but I do know that the originals had a larger rubber bumper that would fit in just the plastic butt sleeve. The newer style Meuccis have wood all of the way to the end and need a smaller dia. bumper.
Ask the seller to send you a pic of the inside of the butt (with the bumper next to it). If you see any wood at all in ther, it's definitely not an 84 gambler.