"A lot of effort involved in making vegan diet work." It seems more difficult than it actually is to be honest. Eat a balanced, whole food diet, take your B12 vitamin, make sure you meet your daily caloric requirements and you're good to go.
"Eating vegan doesn't automatically imply eating healthy." The same can be said of an omnivorous diet.
"I struggle a lot with finding mostly animal product specifics (if not specific to, then very scarce among vegan-friendly products) most notably cobalamin and taurine to name some."
Technically speaking, cobalamin (B12) comes from bacteria, not animals. As such, it can be found in soil, water and some aquatic plants. Having said that, I don't see an issue with taking one B12 tablet once a week. It's also worth noting that 85% of the B12 production goes to farm animals. We are supplemented, whether we like it or not. Taurine, on the other hand, is not an essential amino acid. Nevertheless, it's widely available in synthetic form (vegan friendly) in most energy drinks.
"I would need to hire a personal trainer to get a proper vegan diet going". If you're really concerned about your dietery reference intake, I highly recommend cronometer, it works wonder.
I can easily be reached on discord. Let me know if you ever feel like exploring/debate this topic any further or if you have questions with respect to the core tenet of veganism. Have a good one.