The woman behind menshoes.de is Katrin Hoste, she's in direct touch with the Dinkelacker owners. I'm sure you can place a MTO deal through her if Panta doesn't offer this option yet. If you want something outrageous, try asking for quadruple oak bark leather soles. With gilt toe taps. I've never seen such beasts from any maker, yours might be the first in existence.
...and so it begins.
Don't think menshoes delivers to US. I can MTO anything, actually have some special makeups being worked on now.