I’ll 2nd Jon’s comment
In this case if you like the universal remote, it’ll work just fine. But you do NEED a standard AC Transformer. Just about anything will work, keep in mind if you use a post war transformer you need to add the circuit protection and there’s a number of other threads explaining that.
If your looking at new transformers a CW-80 will definitely do it, if you think you may expand one day might look into a GW-180. And really if you don’t have any standard conventional locomotives there’s no need for the transformer handle and you could just use a 180W PowerHouse, to say the least there’s a number of different ways to skin this cat.
Get your new Legacy locomotive running correctly then you can decide if your going more into TMCC/LEGACY. I’d avoid a original Cab-1 as there’s better options now. If you want to get your toes wet I’d recommend getting a Cab-1L set.
