Bummer the Wanderer 9xl is out of stock would the 10xl be good or should I just go with the fiago 9xl?

By the way this is deffiently going into a x1-crt with the hb front and rear 43/10 diffs and a 51t center gear powered by 2 Orion 4800 lipos controlled by the Mamaba Maxx.

Speaking of the diffs do I have to get a full diff assembly or can the HB gears work with the ofna diffs? These are new and it would be a shame to toss them aside.

Thanks