I think your starting with ground psyllium husks is a good way to start.
I would recommend that you take 1 heaping tablespoon 2 times a day for 3 days and then boost it to 3 times a day. Be sure you drink lots of water or it won't work, psyllium absorbs lots of water. Drink at least 8-10 glasses of water a day. You will feel a bloated feeling, which is normal, but usually no cramps or gas. The water can be mixed half and half with juice sometimes if you wish. After you have been on the psyllium for one week start taking an enema with 9 drops of peppermint oil and 1/2 teaspoonful of salt per 2 quarts. Take the enema in the evening. You can follow this enema with a coffee retention enema to help soothe the bowel and detoxify the liver at the same time, if you wish. If enemas are repulsive to you then don't do it, but it does help tremendously in bowel cleansing.
If you have the time and interest there is a good program by the "Arise & Shine" company. Their products are very reasonably priced. Use their Chompers and their Herbal Nutrition capsules together. It is a 7 day program but you have to have the time to follow the regimen strictly, which is very simple. This program is very effective and you will get rid of any plaque for sure. The address for Arise and Shine is, Mt. Shasta, California, 96067 U.S.A. Ask for their catalog of products.
Good luck to you and I hope you have the success you hope for.