Physical Model of a Cliffside

I’m within the strategy of crafting a mannequin for my studio class and I’m curious if anybody has labored with an analogous terrain and has strategies. Our web site is an deserted limestone quarry however the space I’ve chosen is pictured above, resting in entrance of the cut up you see. Due to the scale of the venture (prime to backside round 200 ft), figuring out scale, supplies, and degree of element has been more difficult than normal. Ideally seeking to do 1/8” however might drop right down to 1/16”, as a result of I’m seeking to present the total peak. Has anybody modeled one thing like this earlier than and have any recommendation for the way I might deal with this in an reasonably priced method?