So I'm on the proper way or not?
not. the shiftout shiftin commands leave the clock line high on completion{mode 5} so when you swap between them the slave device will see
a false rising edge and you lose a data bit .

nearly all respectable pic16/18 chips have a mssp module why not just use it ?
or write a bit banger to suit

Well, MAX7219, DS1302 we use only 3 pins
which are not spi anyway , its a stupid argument