Canīt the wide timingbelt be fitted with only the removal of the balancershaft-belt (and leave the shafts in) ??

I do realize that it would be better to remove the shafts as well, just wondering if a more simpler solution could be done as I recently had the engine out and then left the shafts without the belt, not so eager to take it out completely again..

On the positive side I already have the gearbox strenghtening plate

Will the 25mm wide timingbelt kit fit behind the "dust-caps" covering the belt or will this have to be sacrificed ??