porsche1914: You got hubcaps (small as used on very plain 4 cylinder HJs) instead of wheelcovers (cover the whole rim)? Stock HJ rims are 4.5 inches wide, and the modern radial replacement tire is about P165X15. You could get a set of big Kaiser rims which are wider, BUT I will tell you this, it will not help you any because clearances are already close between the rear wheels and rear fenders. However, the dangerous part is if you use bigger tires and you turn left, the tires will touch the clutch linkage.
As to lowering the front end, a lot of HJs are already lower in the front end than they should be because the bottom turn of the coil spring tends to break. The "Mexican" way of lowering a car with coil springs is to heat a place in the coil with a torch until it bends.
I personally don't believe in blue dot tail lights. But if you really must insist on them, I would suggest removing the glass tail light lens (the locking rim will cut your thumb) and gluing a Peterson plastic utility light lens over the HJ housing with the blue dot element.