I have about 3 or so F16V3 that I am not using at the moment, happy to have a look at yours if you like and see what we can do.
I'm.in Toowoomba though
So can you connect to that FPP at all? I had the same thing with an F16V5 last week, been running for 4 months perfectly, put it out to run the show and it would not work with any pi's, would not work on lan or direct wifi. I did a full reset and set it up exactly the same and away it went.
Xlights is great for flipping, reversing and changing to suit what you have in real life.
Just build it, power it up and then start swapping at xlights model level until you get it right, the sub menu for your model has all the available connections etc, bottom left, top right, you will work it out.
So have you got any equipment already? Have you ordered any?
What do you think you would like to do, maybe mark up a picture of your house and post here if you need a bit of help