you can get g203/g102 for cheap, it has a decent sensor - doesn't spin out and has good speed, it can track 5m/s iirc. Imo 3360 is a better sensor, at least it felt like that to me and there are definitely mice that are selling for around $35 with it, so it all depends on the shape that you prefer. If you pay a bit more then you can find some 3389 too, I've seen some mouse from a polish brand here, it was for like $45 I think
EDIT: my 203 was double clicking after like 2 years (1.5 year of actual usage), but you can get new switches for cheap and solder them in