I don't understand this - why does Ron need to buy his own microscope? At all of the universities I worked (3 different ones in Australia but pretty sure it's the same across all), there are just university owned microscopes (and other assets) that you can pay to use per hour..
If you really need equipment that is specialised then you have to get some grant funding. I realise Ron has applied for multiple grants (yes it's very normal to get rejected constantly and apply constantly for more), but being such a well known professor from such a well known university I'm surprised by how little access he has to equipment and funding support.
If a fluorescence microscope is the biggest hurdle currently then we're further away from a cure than we realised..