That's what I have been doing, I called Grasshopper a few ago and they sent me some studs without the heads, works OK but just wish they would change to studs.I took 2 long shank 1/2"-20NC bolts and cut heads off to use as guide studs. Install 2 guide studs and slip rim on guide studs. Install 3 lug bolts snugly, remove guide studs and install remaining 2 lug bolts. Sure guide studs in fender storage compartment.
This should reduce frustration. I also did this for my buddy"s boat trailer with the same style hubs with bolt lugs.