I tried sub 200 farming... I did not like it.
The loot is hardly worth the cost of the raid, you get raided 24/7 (so far in the time I have been typing this, I have been raided 6 times in a row) any bases that have good loot are too heavily guarded, it takes forever to get down to that trophy range, and even longer to get back up to where you were at.
Take my advice: unless you are Uber hardcore at this and have the time and energy to stay on enough to make it worth your time, avoid this farming.
Btw, the raid count went up to 9. And now it is 10




