Will pay for premade LED/LCD audio spectrum analyzer

To see what I'm talking about, search Youtube for "audio spectrum analyzer" and there will be tons of videos, with either LED or LCD devices.

Unfortunately I do not have time/knowledge to build one myself, so I went hunting. The only place I could find started at $130, which I thought was a bit above what I would pay for that, considering you could probably buy an old used graphical equalizer for a tenth, and take it apart.

So could anyone pre-asemble one such device for me? The price to build it obviously depends on the size of the thing. If you tell me your price I will navigate towards a fitting price for a fitting size.

If 130 bucks is too much, anyone prepared to make one for you will be paid at slave-labour rates.