The terms old Nappy shoudl and Could impose are two different things.
If he is smart enough he will ask for things that will benefit France in the future - thus only little territorial gains - if any,. Mor important is to cripple the British Battle line - take away around 50% of the brit ships - and/or ask the scrapping of a large part of the Navy.
Incite an Irish uprising (befroe negotiations) and demand an Irish state.
Isn't india "owned" by a "company" - so I assume its a no go...
Maybe some small islands in the Caribbean (Jamaica) at most, but Bermudas would offer an nicht opportunity to controll the North Atlantic
IIRC UK had a total population of 10mill. around 1800. - deduct women children and elderly the total force UK could muster could exceed 1 Million with ease (but muster does not mean happily and willingly serving souldiers), but its not the numbers - equipping them would be the larger problem. Militia units would also "break" easily under fire, so larger does not mean better. - I doubt that UK can muster 100K good troops vs Frances 200K - does look bleak for UK.
Not saing it would have been possible as I doubt there is ssomething that would Nappy actually allow to get his army over the pond... But IF he had UK is Toast