Judging from your thread you put a lot more effort in your conversion than i did

Nice motor mount btw
I used a emaxx motor mount, dremeled it the way i needed it and bolted it to the front diff mount. My old buggy already had a plastic spur. I think i used the same material to make my battery trays and wrapped it with Gaffa tape for more stability.
Seeing 2 battery trays and the fact that you turned your center diff to the front i would assume you are going for the following setup
right?
pretty much what i did too ...
This is a
pic of my old 4s setup (Jazz 80-6-18, Fun 600/25 and Konion 4s4p)
And
this is how i run it now (Jazz 55-10-32, Neu 1512/2y, 10s1p A123)