Purse Strings adjusted his glasses. "Hrm, yes, well. It does seem as though the operational costs should not be too excessive; it is the initial outlay which is most worrisome. But as for 'reasonable,' Your Majesty..." He nodded his head, lifting his lower lip. "...This demonstration today has reinforced my confidence in Your Majesties' Royal Engineer. I should like to be able to approve this endeavor."