The Massey lug bolts have a taper. You have to buy bolts to install the spacers. The bolts you buy have a smaller head, but they are the same shank size.
Then the spacers come with their own studs and nuts for mounting the wheels to the spacers. No issues. Real simple install.
I ended up buying these.
SCITOO 2X 2 inch 5x114.3mm 5 Lug Wheel Spacers Adapters 5x4.5 to 5x4.5 1/2"x20 82.5mm CB fit for Ranger Mustang Explorer for Je-ep Grand for Cherokee https://www.amazon.com/dp/B01HGDW4LQ/ref=cm_sw_r_apan_glt_fabc_FYTS947ST8DZ1E6NSYWZ
Yeah, that's about what I thought. I think I would have rather had the extra $1500 to spend on implements.
No regrets... Just saying.
Because there's always something.
Maybe if I went the e route, I might have later wished I had the extra hp.
So far I'm really liking it. One little thing they should add that wouldn't be too difficult is a little light on the dash when you are in 4wd. That way you don't forget you have it in 4wd when you're driving on pavement.