Haven't done a "kit" yet, but have done a couple of WOW Sound decoder installs with Keep Alive. Really great decoders, the vocal CV settings work very well.
Look prertty straight forward.
https://www.tcsdcc.com/Customer_Content/Products/WOWKits/Diesel/Kato_WK.php
Rich
If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.
I just ordered TCS WOWkit WDK-KAT-1. I will be installing it in a Stewart/Kato F7A. Norm with TCS tech department advised it would be a perfect fit. I'm not a novice, but by no means an expert. I wonder if anyone has had a chance to install one of the kits.