Haha nowhere near. I'm an indecisive perfectionist with a tendency to procrastinate.
And now I've hit another snag; the tank is about 2/3 full, and it turns out that the rough sawn timber is nowhere near as accurately gaughed as I thought it was. There is about a 3mm gap between the poly and the timber all along the right hand end and around the back corner for about 20cm. I can fit a snap-off blade between the floor and the bottom of the stand all the way along the front, so it looks like most of the weight is resting on the middle joists. I'm not going to fill it any more, I'll leave it for a few days to see if the poly crushes any more while I weigh up my options, but I doubt it will.
I'm going to get a price for a steel stand, I'm really kicking myself for being a tight-*** and not getting a steel one right from the start.
The other option is to make another timber stand of the same design, but have a wood worker run all the timber through a thicknesser so that it is all exactly the same height.
It sucks as I really wanted to get it filled and have the sump running this week, but its not going to happen. I'm not going to risk the tank and fish on an uneven stand.