Hi there,
Thats a very impressive looking track plan. If your happy with NCE, but need more power, then you could always add the NCE Powerpro base station or booster to your system. That would give you 5 amps for your layout. This isn’t a very cheap option though, I believe the booster is about £180.
NCE have released a WiFi board just recently which allows control of your layout through your powercab with a phone or tablet.
https://www.digitrains.co.uk/shop-by-brand/nce/nce-cab-bus-wifi-interface.html
There are plenty of other systems that could be suitable. The ROCO Z21 is very popular, and certainly fulfils your desire to operate with a phone or tablet.
We use an ESU ECoS, and have done so for 10+ years. This would definitely fall into the bracket of a high end system. With the addition of a small WiFi router, plugged straight into the back, and an appropriate app, tether free control is very nice. We’ve been using this setup for many years on multiple exhibition layouts, and it’s been supremely reliable.
The apps for the ECoS are:
TouchCab (Apple devices only. Compatible with ESU ECoS and Lenz systems)
ECoS Cab (Apple, Android and Windows. Only compatible with ECoS)
I hope this helps a little bit, and I’m sure there will be others with suggestions also.
Regards,
Simon