Gauge help

Hello everyone, I have a question about aftermarket gauges and was hoping someone could clarify. My 81 LTD has electronic gauges. Speedo runs on magnetic sensor and tach runs off coil. So will an aftermarket digital gauge be a pretty straight forward install? (at least compared to swapping mechanical to digital)

Was thinking about something like this or similar,
www.dimecitycycles.com/acewell-1550t-dig...ometer-mph-kph.html#

I don't know that much about it. my disclaimer. hee
The tachometer should be fairly straight forward, probably pretty much the same as the stock electronic tach.
For the speedometer you'll probably have to install a speed sensor. There may be youtube videos.
Here's a pdf from the Acewell site:

Acewell 1500 User manual EN (English)

Thanks Martin CSR, seems do'able. Vendors dont give me a lot of confidence when they state things like ..

"not responsible for incorrect orders as it pertains to Ratios and Electronic/Mechanical pickups."

Seems pretty easy. I run similar pickups.
Magnetic for speed and wrapped wire around spark plug wire for tach/hour meter.