Nice win at Townsville, topsy99!
A database like the one you describe will always be more complete than using RacingandSports Group/Listed summaries. The R&S info seems to go back to only 2007, so that leaves a big hole. And I don't add in higher prizemoney non-black type races, as you do. So our figures will not match - yours will be more accurate. I really only tried using the R&S material to see how it went as an approximation of your process.
I will stick to numbers 2,10,14 in the Perth Cup out of interest - 10 for a place.
Here's hoping.
Jackact