So the decision has been made.
We sold our 5 80% 395 tyres and bought back 6 365 XZL Michelin tyres. 5 on rim and 1 spare.
In the end the extra 10-15cm height in the box was more important than the extra clearance on the road.
Now only to wait another 2 months before we see her again.
Ps still thinking about the overdrive and injectors…