First of all you have a lot more reading to do...
There used to be a brand of oral nandrolone on the market, but i think it's long gone and besides no one called it "deca." Real deca you will have to inject and in Thailand it costs a shitload of $. Other gear is cheap though... There is testosterone in oral form called ANDRIOL, but it's not nearly as effective as injectable testosterone... If you only have 6 weeks you might as well use dianabol/winstrol/nolvadex 30/30/10 mg per day. It's a lot for a first cycle, but what the hell, it's Thailand right?
PS: I did my first cycle in Thailand too: 6 weeks, dianabol and nolvadex... (You could just do without the winstrol and use dianabol and nolvadex only.