Maybe you should post in the Newbie Forum about all this stuff man. Most of it can be found elsewhere on the board, and it's kinda cluttering up this forum with newbie questions. No offense, I realize you're pretty new on the board, so it's no problem. Just in the future with stuff like this maybe it should go in the newbie forum.
Your ideas are good though, but most (probably all) of them have been discussed before.
DLD Bends are more of a GIRTH and WIDTH exercise. Erect stretching is a cementing exercise used to help guys close the gap between their flaccid stretched size and their erect size. Here is the exercise:
Erect Stretching Starting with a 100% erection stetch penis upward in the direction of your erection. Hold this stretch for 30 seconds. Rest for 20 seconds. During this rest period get yourself 100% erect for the next rep.