Make SIS BETA fuel yourself just a few pence per bottle

I do my mixes at home 1:1 fructose and maltodextrine. Usually 100 grams/bottle. I’ll do a training camp where I’ll usually ride 5 hours/day for two weeks or more. Even if using 300 grams a ride which would be a minimum I would need around 2+2 kilograms of fructose and maltodextrine. This is not very practical. What risks I face when using sucrose instead of my mix? It would be hypertonic but mine already is. I guess it would have higher osmolarity only thanks to glucose and it would be only in the stomach. In the doudenum it is separated into same constituents so it shouldn’t matter, right?

Warmer weather and much longer rides will be a challenge to fuel.