Opinion based on experience:
Is there a reason to be using Real Trax? That can be like running a race with one leg in a cast. These plans of super quality construction with an aim toward permanence just screams GG and Ross to me. Going with GarGraves or Ross track and Ross switches (all made in the USA) will eliminate a host of design problems and open the door for switch configurations unavailable with any imported limited selection track from the big three.
With GG and Ross you could almost use a pen and napkin to design a layout. If you can think it, GG & Ross will make it happen.
As far as fudging Real Trax, DON"T, just go for an overlap design, then remove what ever the overlap is from the center of a section of track then perfectly position them adjacent together on the same flat plane and solder jumper wires from each pad under each end.
Any sectional track should lay as it is determined by it's design geometry. Fudging sectional track can be very painful to one's vision.
Any 1 1/4" gauge track can be added to any other 1 1/4" gauge as long as the rail heads are level, flat and aligned with electrical bonding jumpers.
