My understanding is, barring registration in an approved program by Sept 1, you must now secure a SP ticket to fly UL. Other than cost (and not much) theres no advantage to UL anymore. You can find good airworthy examples of Taylorcrafts for $12k and the 701 can be built new for less than $20k (the hard way) or easily $30k. Both have much greater performance per dollar and , IMO, much greater safety factors. Nothing wrong with ULs, but SP has removed any licensing advantage.
Experimental vs. Type certified is something else you will need to consider. The old UL rules are out now AFAIK, but not onerous as the SP regs are reasonable.
If your concern is complexity - the two examples I mentioned are not complex. Dont be fooled by the enclosed cockpit of the 701. If you can build it safely yourself, it cant be too complex. The Taylorcrafts were built simply and robust. But I prefer a bit more versatility and think theres better values out there than ULs.
Im sure there are more knowledgeable pilots here. Hope they chime in
Luck
Alac