Hi Ronaffet.

A couple of things... one, the overall scale length is the measurement to go by, not the 1/2 x 2.

30" is 762mm, and it looks to me like the E6 (treble E) saddle may be bloody near bang on to that. The E6 saddle is going to be the one that is always closest to the nut, so this is your determining factor. The E1 (bass E) will most always be the the furthest away from the nut.

IME, the bass E can be as much as 4mm further back than the treble E. This is why the bridge is angled the way it is. To compensate for that difference in distance. Your E1 saddle looks to be roughly 766mm at its furthest forward position. If you find it needs to be less than 766mm in order to intonate, you can remove the saddle and turn it around to loose another 2mm or so.

Whilst it is generally optimal to have a bit of forward adjustment to the E6, it may very well be fine where it is. Sometimes the treble E may intonate 1-1.5mm longer than the "exact" scale length. Every guitar is different.

Also, for more accurate measuring, a steel rule will give you a much better and consistent result. A tape measure can have a bit of play in the cleat on the end and give a different measurement depending of whether pulling or pushing the tape. (they can be calibrated and fixed, but that's another thread...)