All in w/ a new speedo cable was about 1k. Pricey, but compared to new gauges and a custom dash it may be cheaper this way. Conceptually I wanted functional gauges, etc. but with a stock look. I also went through two Autometer 5" speedometers in the period of about ten years in an Aluminum dash I fabricated in 1991. I have never had an issue with the stock stuff, so I finally decided to go this route. The effect I want when the car is done is for someone looking at it from the outside or the passenger seat not to know that the car is much more than stock.
If you want I can PM you w/ line item details on the cost.