Anyone got any information on Visa available in Katmandu? I am possibly going to be going there for a holiday, would be awesome if I could pick up a Non O Multi there..

 

Also the requirements if anyone knows... (I am married to a Thai)

They have this notice on their website. 

Quote

• To prevent the security issue that may occur, the Embassy has reserved full rights to refuse the visa for the foreigner who are non-residence in Nepal and travel into Nepal for the tourist purpose. The foreigners who have visited Thailand before may be exemption for this standard.

Source: http://www.thaiembnepal.org.np/?do=services&index=visa&lang=en

I have seen no reports of them issuing a non-o visa. You should contact them about it.