VA/Raingear

Am trying to head off a redo, when putting defrost in a VA Gen4 app.
55 sedan, automatic, floor shift, with DBW pedal.
I have the pedal mtd, a dummy Gen4, the RG, and a GM fuse panel, mtd toward outer side of the inner dr firewall.
I also have the original def plenum.
[The 2 plastic vents in the kit, leave a lot to be desired].
Anyone have a trik way to use all 4 defroster vents?
I have seen reports of the control slider assembly coming very close, or into the pedal assy.
NE1 with that experience?

TIA,

I've never seen the 2 hole 56 plenum used with Raingear and VA, let alone the 4 hole 55 plenum. Frankly it looks hard for the gain involved.

But if you figure it out, or find someone who did, please share.

I've got all the "stuff" installed, and am looking at some ideas for the outer runs.
Center 2 are covered by the VA parts.

My 55 has raingear with a stock deluxe heater, however I have no ac.