Looking at re-establishing a base of operations in the Great Temple on Yavin 4 (our story is set after RoTJ).

Anyone have any good floor plans, schematics, blueprints of the base?

Any artwork of the Temple would be great also.

Thanks in advance.

More art then floor plan:

Sadly, that great artwork has never been consistent with primary photographic evidence from A New Hope:

A New Hope - Yavin IV Great Temple - Ground Level

A perspective analysis of the buttresses here shows that it is impossible for the angle between them to be 45 degrees (8 buttresses as in the crossection): with the camera pointing squarely at a buttress on the right of the image, the face of the buttress 2 removed to the left should not be visible to the camera even if it were infinitely far away (it should point to the left out of the picture). I never could determine whether the correct angle between the buttresses is 30 degrees (12 buttresses), 22.5 degrees (16 buttresses), or something else; I suppose one would have to create a 3D model and try to recreate the camera angles...

Fortunately, we got new evidence last december in Rogue One where Lucasfilm did most of that job for us:

Rogue One - Yavin IV Great Temple - Panorama

Rogue One - Yavin IV Great Temple - Ground Level

As shown here, the temple is much larger than previously thought, and has a base with `16 buttresses and segments. Only 3 floors up does the number of buttresses halve to 8.

Looking at more evidence from Rogue 1 , the edge length of the hexadecagon formed by the buttresses on the plateau the temple stands on seems to be about 2.8 UT-60D U-wing lengths (25m per wookieepedia) or 4.5 T-65 X-wing lengths (12.5m per wookieepedia). Unfortunately, neither of those two spaceship measurements can be correct per that photo, since it indicates the ratio between their lengths should be about 1.54, and not 2 as per wookieepedia (note that the U-wing, the X-wing and the temple edge are all mostly parallel in the photo, allowing for direct comparison between measured lengths)...

Either way, we get a base edge length of between 52m (X-wing comparison) and 68m (U-wing comparison), which we can plug into the formula for determining a hexadecagon's diameter (d = a / sin(π/16)), resulting in a total diameter between 269m (X-wing comparison) and 349m (U-wing comparison).

There are a couple of maps available from previous editions of the rolelplaying game--one from d6 and one from d20.

http://starwars.wikia.com/wiki/Great_Temple_(Yavin_4)

http://starwars.wikia.com/wiki/Massassi_Site

-Nate

Isn't there a smallish map in Strongholds of the Resistance?