Mmm...like your thinking. Have been looking at the exotic forks...full carbon ones but they are a little dear. Not sure I will get 700c wheels in that frame
from what i can find, the axle to crown (A2C) distance of your forks when fully extended is about 470mm. allowing for 25mm sag, that gives 445mm required for a rigid fork for maintaining headtube angle/bike geometry. if the frame was happy with a set of 120mm forks instead of 100mm, then you'd be at 465, nearly 470! bolt a pair on that fame and go 1x10 and i bet it'd be as light as a light thing