I am sure you could go for different bills.
However rest assured that the Revenue will be more than aware of such issues so I suspect the wording on the different declarations may cover this off.
Its not rocket science to match addresses, PPS numbers, etc.
So the question remains: is it worth the small amount, which if I understand it correctly is 13.5% VAT of the grant over 2 years, involved here when you are spending 100k, is it worth the risk of being flagged for a Revenue audit across all your enterprises?
As Clint says in the movie: Are you feeling lucky...