Depends on the trike kit, the industrial solid axles with specific hubs would probably be the easiest, most hubs have 36 holes for the trike kits, how many spokes is the occ stingray wheels?
i used occ wheels on my boys trike ...we had 2 use a die grinder and a file 2 make the hubs fit the axle ...then we drilled holes thru the hub and axle ...finish with chrome acorn nuts ....
i post a pic but my photobucket wont work ...