Split the difference? The paratroopers were chomping at the bit for some action so give them a slightly earlier operation that drops them around Woensdrecht at the base of the peninsula and on South Beveland west of the canal. They dig in, also sending some troops to take North Beveland, and wait for the heavy units to come up from Antwerp to reinforce them. That would be roughly two weeks before our timeline's Operation Market Garden started so it would cost you say a week or two delay, compensated for by facing much fewer troops from van Zangen's 15th Army that were evacuated from the Breskens pocket when you launch it.