Are you stupid ? Why would you go to a shithole to fuck an ugly girl ? Shop for a prostitue instead.
Prostitutes are significantly more expensive than that boyo, 250 bucks for two whole weeks of companionship and sex, thats an extremely good bargin in the western world and even SEA.
In any case OP, great idea and thanks for actually making an effort and getting the contact, might be preferable to SEAmaxx if it turns out that its viable this way. I think you should really go for it and get back here to tell how it went, but as others have pointed out already really take care with where you´re going and what you´re doing.
Always use protection when having sex even if it seems cucked, have yourself checked for STDs when you get back, make a plan where to go and what to do and pick usual tourist destinations that are safer, none of that outback shit, DONT trust your foid of choice, if she starts acting weird or flaking, drop her, dont take anything expensive with you and try to wear stuff that doesnt mark you out for anyone who could be a good target for mugging.
Above all though, if you go through with it, I wish you good luck and have the time of your life, you deserve it.