If you need dispatch reliability, you'll need a full IR. It's painful, but it's actually getting easier to do under EASA. It used to be even worse. From someone who just did it in FAA world, make no mistake, it's a hard rating to do. I think most people would agree on that. It's very procedural and information heavy. But it's a great rating to have and very useful. And ultimately, flying IFR and being part of the system, treated as an equal to airlines, is fun. It's rewarding and elevates your game. You won't regret it.
I did an intensive 10-day course here (it was actually 11, because I did it in a twin) and that was the best way forward for me personally. I have a very bad memory, so eating, sleeping, dreaming IFR for 11 days worked best for me to just get it done.