Which gps speed sensor?

So im building a stock looking custom dash for my 63 dart. I picked up a brand set of Classic Instruments bomber gauges off ebay for a screaming deal. Now im in need of a speedo sending unit. No one makes a hall effect for my push button trans so im forced to go gps.
Im looking for personal feedback and pros and cons for each. Ill post pics of dash when im done hopefully friday.

https://m.summitracing.com/parts/atm-5289

https://m.summitracing.com/parts/cyb-69248e...

Which gps speed sensor?

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