The first thing anyone will want to see is a pointer to the two protocols, because the devil is in the details. Otherwise, sure, someone could cobble together a tool that matches strings for you; would likely prove to be utterly useless.
By the way, welcome! You'll find this community is very technical, and detail-driven, so be prepared to answer lots of detailed questions. There's not much tolerance for those who ignore same.
For your project, I'd recommend an Arduino with at least three hardware serial ports, by the way.
You'll want one for each device, and Serial Monitor is an excellent debugging tool, so use it. For what you want to do, don't go down the 'software serial' rabbit hole, and don't try to do without Serial Monitor.
This may help: