I would agree with that, I think, in light of inflation and the fact that it's probably a bit more challenging for people living with disabilities to get this kind of work done.
Out of my knowledge of a research institute that operates out of Sault Ste. Marie and Algoma University, the rule of thumb is $5,000 when they get research projects. Typically they're all over the map, but $5,000 seems to be the number that comes up most often. So I would support raising this to $5,000 as well.