I can't speak directly to this but I've dealt with Microshift which micronew seems to be copying. With Microshift their shifters would not work with the newest shimano 10sp or 11sp shifters but would work with 4600 series 10 sp shimano or a 9sp rear der which will shift fairly decently. Microshift also offered an r10 long cage rear derailleur for 3x10, perhaps micronew has the same and its worth looking.
I'd be careful matching with LTWOO, I looked over their stuff on aliexpress which is where I assume you are looking. Their road group doesn't make mention of what the shift ratios are, the 10 speed mtb derailleur says it is Deore compatible, this won't be 10sp road compatible. I also looked at the 9 speed rear der and it claimed to work with both shimano and sram, maybe they mean the cassettes and not the shifters but the two systems have completely different ratios so who knows which it really works with. The LTWOO was cheap enough for a 10sp group that I would buy that to make sure it works or I would buy the micronew and use it with a 9sp shimano altus rear derailleur. I do have the 10sp miscroshift on my kid's bike matched with an altus rear derailleur and that works fine.