Customer Deposit / Deposit Application

I have to create a saved search that show the customer deposit info on the left side and the Deposit Application on the right side.

They want something like

Check   Amount           Invoice Paid  Amount
1234     100.00             INV001         100.00

Yes it seem easy, but let say, I don't have any invoice, I still want to see the deposit
Check   Amount           Invoice Paid  Amount
1234     100.00            

And the worst case scenario, the check pay for 2 invoices
Check   Amount           Invoice Paid  Amount
1234     100.00             INV001         75.00
                                     INV002         25.00


How can that be done ?

Thanks
Real