Please help me with a project!

Hi, everyone! It's been a long while since I posted anything here, but I need a little aid to attempt some retopology for a project. 

Here I have a kitty cat sculpt that I made in Blender 2.82:


So, I want to retopologize it because, of course, it looks like this up close:


Beautiful. It's at least 330k vertices...it says different things depending on the mode I'm in. Anyway, I just don't have much time to do a retopology with the shrinkwrap and one vertex at a time (I don't know what I'm talking about, you can tell). Still, if I must, does anyone have a way that might be quicker? I'm also deciding on whether to get RetopoFlow. I'm thinking of my funds, I just don't know!

So, any help you have will be greatly appreciated! I'm a slowpoke with little time, and only in the evenings, really. Thank you in advance! :D

Also, do I need to add Polybooks as a sub-category? I'm so ignorant about it right now. Thanks again!