If you can get me accurate measurements I will make you one for a few pounds.
By accurate measurement I mean vernier calipers or better, not a tape measure, measuring jug, ruler, 'a good guess' or the odometer in your car!
I don't mean to sound rude, but I will explain a good way to measure the distance between the holes, centre - centre:
Measure the diameter of one of the holes (check they are all the same size first) then reset the calipers at the size indicated. Then measure (only for an even number of holes such as these) the distance between opposite holes using the far edge of the holes you are measuring, not the centre. The measurement indicated is the centre-centre measurement of the holes.