^Seems like you're on the right track
Males generally don't need to supplement iron though. Get some blood work done before you even buy an iron supplement. It's true that the iron in veggies is Fe3+ which is absorbed by the body less than the Fe2+ found in meat, however iron is still one few supplements that can be a literal time bomb for your body and health.
Zinc - Unless you have a deficiency, this is another supplement you can easily avoid buying. Again, some simple blood tests will provide you with an answer here. If you do need to supplement though, avoid zinc oxide. Also if you supplement too much you may end up throwing off your copper levels.
Iodine & calcium - Again I have to wonder, is there anything that leads you to believe you actually
need to supplement these 2? You can likely get plenty from you diet.
Vitamin D/B12 - Definitely keep these. I use a methyl B-12 @ 1mg once per week.*
And ideally you want an oil based D3 @ 3,000 IU-4,000 IU per day.* Consider taking with 45ug-50ug of K2, they synergize quite well. This will also help with keeping your calcium levels in check.
Run a google search for a program called "CRon-O-Meter" It lets you track the nutritional content of your food. I can't recommend it enough it's been a huge help for me when I was trying to figure out what gaps I needed to fill with supplements when I turned veg.
*Not counting what I get from my daily multi.