It depends on what you miss out, the valuation engine wont let you miss anything vital.
You are welcome to put in “best guess” figures but be aware that the price we offer will be different according to what the real figures are when we do due dilligence.
If you dont have any idea of the information then you really need to get it and then come back another day with figures to hand.
Any serious buyer will need the information we request at some point.