That's great that you want to get that mucoid plaque out! I got tons out by using the very simple Bentonite & Psyllium shakes (b&ps). The key is to just drink LOTS of water!
One usually takes a good probiotic AFTER one has bowel cleansed.
My vote would be to b&p...then liver flush....then take the probiotics!
The link below will point you to some great information. It sounds like you've already read a lot. Have you read the Journey to the Center of the Colon at The Doctor Within site yet? DO! It is amazing. It's in the link below too!