@Robert ********
for the application to the 90-days Non-Imm-O marriage visa in your home country, your original marriage documents are sufficient. Only when applying for the "1-year extension of stay permit" on the Immigration in Thailand, you will need a marriage certificate (Kor Ror 22) that shows your marriage has been registered in Thailand as well. The 90 days stay permit you get by entering with the visa, should leave enough time to achieve translated & legalized documents by your country's embassy in Bangkok and get them approved by the Thai MfA