The top 5 links on the right will take you to drawings of Petries triangulation done on CAD for the casing of the three pyramids with the dimensions expained.
1. is Petries triangulation use grid unit north and units.(grid-petrie unit)
2. as 1 but scaled down as a whole into british inches.(grid-brit. inch)
3. as 2 but using primitive inches.(grid-prim. inch)
4. as 2 but rotated to aline the system X-Y inches to true North. (true-brit. inch)
5. as 4 but using primitve inches.(true-prim. inch)
[www.archaic.freeserve.co.uk]

Regarding the corroboration of triangualtion points between Gill, Petrie....

Quote

Here the mean difference in the scale of R E. from 1881 is only – .8, ± .6 for the absolute length; whereas the 1874 base differs + 2.0 on the same length. The R.E. therefore confirms the 1881 result.

[www.ronaldbirdsall.com]
...and socket side lengths.

Do you want me to mail you an AutoCAD file (no server space left) ?
Which version can you accept ?