Stand start with hands matched in the horizontal, and make a longish move to gain the rail. Traverse the rail and top-out, making sure not to dab on the boulder beneath.
From Idiot roof, go right. When you see a low cave on your right (which contains reverse traverse) go through the corridor on the left, squeezing between a a constriction in the corridor. Spice will be on your left at the end of the corridor.
You can also get to the Spice corridor by following the corridor to the right of Idiot roof, and then making a right at the end of that corridor... the Spice corridor will then be on your left.
A couple of pads and a spotter will suffice.