Just a follow up, thanks for the suggestions for fructose!
I found a local home-brewing (beer) supply online store that stocks 1kg fructose , but then I found this thread, and this reply:
(TL;DR: table sugar is just as good as 1:1 malto:fructo)
I have until now, as an alternative to malto+fructose, been experimenting with table sugar (60-90gr/hr)+lemon+salt for my 1-2hr workouts (0,85-0,9 IF). No stomach or taste issues. So for now I am actually just thinking I will keep doing this.
Am I missing something with this approach?