Well I'm am very glad I didn't sound too critical and turn you off.
I looked again at them.
I'm voting .. drumroll..
Tomatoes, option 3/4. Very gingerly put them in the bed. Protect from direct sun. At the same time, stick a couple seeds of the same next to them. The current seedlings just might grow, the seeds might beat them out starting fresh.
Cucumbers, opt 4- Just stick two seeds out directly, you'll probably see them sprout in five days and in two weeks it will be bigger than this one.
Peppers- opt 3/4.. Transplant these very carefully, add seeds. Unfortunately .. peppers are very slow growing; however I know fancy varieties can be hard to find so this may be your only chance to get these particular peppers this year at all. If you have a good supplier it may be worth looking to see if they have enough fun plants left to satisfy you. I already have flowers and tiny fruit on my Jalapenos. Started seed mid January I think. Or Feb? Even if Feb, I am 3 months ahead of you.
Once your nice mix gets outside, out of a small pot, it changes drainage and aeration and may let these babies recover.
Others may vote differently.