I checked your Omega-6 RDA and it seems like this is more like the upper bound of the recommendation. As noted you could go with 4-8% of your energy intake, which at 2000 kcal is about 80-160 kcal or 8,9-17,8 g of Omega-6 daily. What is more Japan lowers it for people that eat a lot of fish, which is Omega-3 basically. My suggestion is to lower the Sunflower oil to 5ml.
As for the the vegetable Omega-3, it is in ALA form, which the body needs to convert in EPA and DHA. Unfortunately for men, that process is very ineffective as per my previously linked article. So we need a lot of ALA, or just a way to get EPA and DHA directly, which means fish. So if you get adequate intake of the hard to obtain fatty acids, you could easily cut back the other Omega-3 sources, such as flaxseeds. The tablets are OK, but I think these have more value in them, even with lower content per pill. 2 of your current pick equals 3 of my recommendation, so you could just switch to them at some point. Also you could space the intake to 1-2 tablets with each meal and potentially evade any unwanted side effects that may arise of high dose fish oil intake.
So to recap:
Get a baseline blood test now and continue with decreased sunflower oil (5-6 ml) and flaxseed (8-10g) intake. You will preserve 1:2-3 omegas ratio and will get to a more comfortable levels of oils in your diet.
Then take a regular blood tests and fine tune your oils intake based on the blood markers (decreased serum triglyceride levels and increased EPA and DHA plasma levels). At least this is what I’m going to do