Awesome. And here I thought the crossing between Malaysia and Thailand (Sadao) was bad. I've now done it about a dozen times and it gets easier... but the same thing about "importing a car" etc.
Thankfully there are maybe only 4 or 5 pages of documents to fill out and the enterprising shops on both sides of the border make good money selling you 1) a coffee 2) filling out the forms FOR you 3) selling you insurance in case you need it for Thailand.
All in all you're out of pocket maybe US$5