What are the cost involved with leasing the following aircraft:
-Global Express XRS plus interior upgrade
-Boeing 737-400 plus interior upgrade
-Airbus A318 plus interior upgrade.

Looking for monthly and annual cost for budget proposal.

Plus if somebody can help describe the material elements of a wet and dry lease or perhaps something other.

Ultimately would lease aircraft while having my current provider maintain and include in their own fleet.

Any help would be greatly appreciated.