Advice for wiring reversing section(s)

Location(s)

I'm just getting back into model railroading after too long of an absence, and to get a jumpstart I picked up an old 4x6 ft N scale layout a gentleman was selling at a garage sale... nice layout, nearly 20 switches, came with over 2 dozen cars which I've been cleaning and retrofitting with Micro-line trucks/couplers.  I did N scale with my dad over 25 years ago, so it's nice to be getting back into it (now that I have a son).  The wiring is rather messy and I'm going to be redoing it, but I've run into a snag regarding the best way to handle some reversing sections at the end of a dogbone.

Here is a schematic image of the area in question as it's laid out:

 In a more straightline schematic, it looks like this:

Turnouts are the numbered circles, and the track segments marked with the letters A-D in diamonds are the reversing sections. If you enter the loop through turnout 5 and take segment B, for example, you'll loop counterclockwise until you reach turnout 8 and then can either take segment C to leave the loop "normally" or can take segment D for a reverse.  The overall effect is nice because you can enter the loop on either track, loop either direction, and come out normally or reversed.  

The problem is that segments A & B, which would be the reversing sections if you go clockwise around the loop, are very short -- maybe 16 inches at best -- while segments C & D are over twice that and would be much closer to a "train-length".  I'm not totally sure what the right approach is to block these to create more usable reversing sections.  Complicated wiring doesn't bother me providing it leads to easier (and flexible) operation.

The track and turnouts are all Atlas Code 80 sectional stuff (which is getting a good workover with a Bright Boy!), if that matters.  I'll be having to replace the switch controllers for the turnouts and the block switches (it's set up for 2 cab operation, which I want to keep), and may incorporate some "smart logic" to do route controlling for easier operation.    Any and all suggestions and ideas will be greatly appreciated!!

Thanks!

BJ Backitis