Congrats on the 390.
The 2010 KTM wheels should go right on with any issue.
After 2012, on some KTMs the axle size changed, so you'd have to get new spacers to fit them.
Probably more money than you want to spend but interested in a brand new (never fitted in bike or fitted tyres on rims )
Set of tubeless alpina custom made with (also brand new) OEM hubs with cush drive.
Wheelset worth over 2000€ including rear disc/supersproxx sprocket everything on it is never used.
I want 1350 for it also have a front wave braking disc never used/fitted or a good used beringer disc