I don't understand your first comment of being Dx'd with hypothyroid w/ Graves disease a year ago.
HypoT is not together with Graves - Hyperthyroid is aassociated with Graves - not hypoT.
Many people swear by Selenium in helping their thyroid issues. Personally I have found it not to work for me, but hey, I am one of the minority, not the majority. Selenium is said to help the body convert the T4 into usable T3.
The recommended daily dose is 55 micrograms. I have included a link to show you where you can get Selenium naturally instead of through a pill.
http://ods.od.nih.gov/factsheets/selenium.asp You will have to cut and paste the link.
Co-enzyme 10 is used in many cells in the body and it is a great help for those who have high cholesterol problems also. It wouldn't hurt to take it, regardless, as many people are low on this.
Tomatoes have very little copper in them, and even then you have to eat them raw, and pretty much straight off the vine. Any store bought ones are usually kept at temperatures in storage which prolong shelf life but hinder vitamin and mineral contents.
Radishes, grapefruit and cherries have high copper levels.
I am not sure what you mean by an egg or two for thyroxine? The egg after being hatched actually are chilled down and not able to develop any thyroid so there is no usable thyroxine for a human.
By eating a well balanced diet and watching you don't eat too much broccoli, kale or cabbage, you don't need any extra supplements. The body actually eleminates what it doesn't need and you end up paying alot of money for something going down the loo!
For example, if you ate two eggs a day, two pieces of white bread and a lump of cheese, you have already obtained more than your daily allowance of Selenium!
B12 is harder for some people to obtain in their diet. I was one who was very very low, tablets just didn't do it for me, always was still very low. Started having Soy (vanilla flavoured, not that yukky plain stuff! LOL!) and BAM! B12 went up like lightning!
Unfortunately for me I don't absorb iron through my diet, so it is definitely one addition I have to take for life, through a liquid supplement.
Ok enough of my rant!
Cheers!