Switching from repetier to marlin. How to do pin mapping?

Hello,

I'm trying to switch from repetier firmware to marlin in order to try out the mesh based bed correction.
There is however some things i have configured in repetier to which i cant find the marlin counterpart. Mostly its about remapping the pins.

Here's the parts of the repetier config i'm having trouble to replicate.

//move ymin to xmas so y min/max are free for use as uart with esp3d. This is a mirror of the default serial. Usb and wifi can be used at the same time.
#undef Y_MIN_PIN
#define Y_MIN_PIN ORIG_Z_MAX_PIN
#define BLUETOOTH_SERIAL  3
#define BLUETOOTH_BAUD  57600

//dual z steppers
#define FEATURE_TWO_ZSTEPPER 1
#define Z2_STEP_PIN   ORIG_E1_STEP_PIN
#define Z2_DIR_PIN    ORIG_E1_DIR_PIN
#define Z2_ENABLE_PIN ORIG_E1_ENABLE_PIN

//probe
#define Z_PROBE_PIN ORIG_X_MAX_PIN

Also im using a
#define FEATURE_CONTROLLER 11 (CONTROLLER_REPRAPDISCOUNT_GLCD) without built in sd card (the one from the wanhao i3)
with an sdramps on "aux-3" to provide sd support
#define SDSUPPORT 1
I also had to comment out some lines in ui.h to not disable sdramps when using glcd, not sure if i need to replicate that.

/*
#if FEATURE_CONTROLLER == CONTROLLER_SMARTRAMPS || FEATURE_CONTROLLER == CONTROLLER_GADGETS3D_SHIELD || FEATURE_CONTROLLER == CONTROLLER_BAM_DICE_DUE || (FEATURE_CONTROLLER == CONTROLLER_REPRAPDISCOUNT_GLCD && MOTHERBOARD != CONTROLLER_FELIX_DUE)
#undef SDCARDDETECT
#if MOTHERBOARD == 37
#define SDCARDDETECT ORIG_SDCARDDETECT
#else
#define SDCARDDETECT 49
#endif
#undef SDCARDDETECTINVERTED
#define SDCARDDETECTINVERTED 0
#undef SDSUPPORT
#define SDSUPPORT 1
#endif
*/

Thank you, any help would be appreciated.