Heljan 0 gauge class 40 lights

[robertwm3110]

Converting Heljan 40 0 gauge to DCC using Zimo699 chip.  Can you reuse the lighting for front and tail lights as supplied on the printed circuit boards.  The wiring seems unusual (like most Heljan wiring) and presume its paired white forward/red rear,  changing as direction is selected. If you can use it can somebody confirm that R1-R5 are resistors and those will avoid using separate resistors on the positive feed from the chip.