Check the store for mounts, but I dont think Mike has anything for HongNor- get thee some L shaped 6061-T6 aluminium and a hacksaw, you've got work to do...
If you take careful measurements and send Mike the measurements you may get lucky with one in the RCMonster store he has that may fit. Another option is contacting Mike and then send him the center diff mount and he could make a custom one for you
1. MBX-6 T8 1900KV, RX8 ON 4S
2. MBX-5T 1520, MMM ON 5S
3. MBX-5 ONROAD CONVERSION 1515, MMM ON 5S
4. MRX-3 ON ROAD CONVERSION 1512, MMM ON 6S
5. TEN T 2650 T8, MMP ON 3S