Hi there,
I´m a Structural/Geotechnical Engineer, I´ve worked with finite elementes during my students and proffessional carrrer, I have lots of experience in this area.
I have solved this problem before ussing python programing, flexural analisys of thin plates with irregular shapes, for my finite elements course at the uni. For your project I would have to change the language to VBA and change the scheme from plate to shell.
I can guarantee to deliver great work and results.
Let me know.