Hey guys.... I have a question for ya.... Well maybe just tips... I am building a coventry II walkway and step tommorow... The step is only one riser and basically is all a step (is there a technical name for this?) I hope you understand what I am saying... I was wondering if anyone had a picture they could share.... the dimension is 5' on 3 sides... and I am going to use coventry pavers as the tread.. Also want to possibly use bullnose.... Going to be 3 courses one burried, and two showing.. can I mix in 3" coventry or just stick with 6" Thanks guys!