Somchit is the guy to contact.
Sorry dont have an address or phone number, but can show your mate where it is on Ragaeng, not far from Kamphaengdin.
All he has to do is get on the board at contact me. I'm of to Laos Monday, so you gotta be quick.
Have you been doing any riding lately - haven't seen you on the road.
Go south down Kamphaengdin until it hits Ragaeng, then turn left into Ragaeng, cross over the canal, & there's a huge motor vehicle body work / panel beaters shop on the left. That's "Somchits;" sorry don't know the real name of the shop.
I cant help much more right now as I'm in Vientiane, heading for Luang Prabang, but maybe another GT Rider in Cnx can help if you get stuck.