New member-building a plywood boat

[YotaTruck91]

Hi everyone-I found this site looking for information on fishing the Delaware. I live in northwest Hunterdon County right between Spruce Run and Round Valley, plus the Big D is only about 20 minutes away. I'm getting started on a boat project this summer that will be ready to go for next spring. I've researching plans for a long time now to find a good design that would work equally well on Spruce Run and the Valley (especially given the HP restrictions) and the Delaware north of Trenton. After a while I settled on one of Jim Michalak's designs-a guy who designs no-nonsense form over function boats. They don't win beauty contests, but they are simple, durable, and functional:

http://www.duckworksbbs.com/plans/jim/af4casa/index.htm

The boat is 18' long with a 6' beam and a flat bottom. The stern aft of 10' is a constant width and depth so I may even lengthen it to 20'. An 18' should only draft about 6" fully loaded-a 20' about 4.5", so it would be great for the Delaware as long as I can keep the prop out of the rocks, which leads me to my question:

I've been out on Spruce Run and Round Valley plenty and know them pretty well, so I'm looking to get some tips on running the Delaware. The closest boat ramp to me is Kingwood, but I could be as far up as the Poxono ramp at the Water Gap in about an hour. How accessible is the Delaware for powerboats in those areas? Can anybody recommend a good set of maps that show depths and the locations of rapids? Looking forward to learning a lot from others who fish the Delaware regularly. I'll be posting pictures once my build starts as well.