Try this code (you can put it in the init field of a unit or in init.sqf):
waitUntil{!isNil"dyelWeightLimit"};dyelWeightLimit=999999;publicVariable"dyelWeightLimit";

For a more permanent solution, edit DYEL\Scripts\Start.sqf, change dyelWeightLimit to whatever you want and recompile.

It would be eventually cool, if you could load those heavier objects like Vehicle Crates or Heavy Equipment Crates using some kind of support vehicle/equipment like a crane etc.