The clocks of both participants should be visible to everyone - and there should be no restrictions on visual aids - other than that both sides should disclose the visual aids they plan to use long enough in advance that each knows how to challenge the other.
No restriction on taking notes, using a laptop, using a prop . . . anything except a teleprompter. All the visual aids should be online and accessible to us a priori.
Actually, no debate.
Instead, two evenings,a Tuesday and a Wednesday, per subject, where each where the candidate gets to devote one hour on each of the important subjects of our time Economy, foreign policy, domestic policy, and wrap up. who goes first is alternated.
Four hours of prime time each over four weeks. Brochures or booklets available.
Speech available both in vid and written form.
No debate, no drama, just lay out each plan.