I've found it in this topic, you can download it here. It's the advanced version with timer. I tested it myself and it seems to be working. You can also take a look at its topic if you want to see more about it. Good luck.
I'm not sure but I think that both versions are in that topic. Take the one that it's in the main .ZIP file and not the one in the "San Andreas v2 ONLY" folder. It must work. After that, enter your save, and you'll see a window with the collectible things. Press Space after deciding which you need, and then red Targets will appear on your Radar and Map.