In a search for a nifty big monogram thing I turned to Etsy (savior for all things fabulous and surprisingly affordable) and found ENC Creations. After a few messages back and forth with the shop owner to see if they could try to match the "K" style of monograms from Dover (which is what I always select for my few monogrammed pieces) I recieved 4 different mock ups to choose from and then we went into production.
The end result is rad. It's a 14" diameter, cut steel piece that has been finished with a copper tint. I even remembered to mention I wanted to mount it on said trunk so it will arrive with pre-drilled mounting holes.
For $50 it is more unique and much larger than anything else I could find. I think it'll be a beautiful main ornament for trunk.
The shopping/design/feedback process was all speedy and efficient. If I decide I need more giant metal monograms (for more trunks, duh) I would absolutely return to ENC. And I'd wholeheartedly recommend them to anyone else..