I have built the phase shifter project, and added 4 stages to it.  I love the sound at 6 and 8 stages.  I am having trouble hooking Anderton's envelope follower project to it, though.  It just doesnt.  Could it be that the envelope follower doesn't provide enough oomph to drive the 8 Leds within the LDR?

I think that is VERY possible.  One of the strategies sometimes employed to deliver more current to things is to parallel driving elements.  For example, you will note that in the Hollis Ultraflanger, each of the clock lines has 3 - count 'em, 3 - parallel invertor sections to provide the kind of current that will permit the MN3007 to be driven at the kinds of clock frequencies needed for decent flanging.

Dave Barber started a nifty thread here a few months back (and I assume accessible through the archive), where he touted the vitures and wonders of soldering op-amps onto each other, piggyback, to provide greater current delivery capacity.  I tried this out on a Distortion+ clone with a pair of NE5534's (each already able to deliver more current than many other lesser op-amps), and it worked fine, great actually.  So, you might want to consider doubling up the op-amp that drives the LEDs.  Don't be afraid.  Just solder one op-amp on top of the other, pin to pin, and plunk it in the socket.  I don't know if ANY combination will work fine, but Barber recommended experimenting, and most certainly two reasonably similar ones should be no problem (e.g., LM833 + NE5532, TL071 + LF356).  Alternatively, you may need to split the signal and use unity-gain buffer sections, one per pair of LEDs.  These could be op-amps or just transistors.