That’s going to cost a LOT of money. The trick will be to get the box as small as you can without sacrificing protection. If you have to buy pipe lagging, or thin wood to help protect it to get it in a smaller box it’ll be cost effective.
A few years ago I was quite active on Retrobike and things used to be bought and sold with the USA often, then one year all the prices went up massively for over the Atlantic posting and it dried up quite a lot.
I’ll have a look around but I’d be chuffed if it was less than £100 fully insured.
Try here: https://www.parcel2go.com/parcel-delivery/usa?gclid=CjwKCAiAu8SABhAxEiwAsodSZPnmtQBB9NPKIL5PqOXv_vP8rq24nXYu8r_XKEmWQM1DAR7Zv1IAFRoCJEMQAvD_BwE
I’m struggling to get a frame size package sent for less than £200 with insurance just trying some example sizes in their quoting service.
However you send it it’s going to have to be bombproof packaging. Don’t just use the plastic bits a frame comes with, use an old QR hub axle bolted into the dropouts to stop them being squished. Rigid protection (wood/plastic) around all the tubes going round softer protection as well, then packed tightly with cardboard as well. Plenty of protection for puncturing, squashing, throwing, bouncing etc. Basically make it so you can ride over it with a motorbike and it survive. It WILL get thrown and squashed especially as it’ll be relatively light.
And for pity’s sake don’t put fragile stickers on it.
