Mahseer

Yes. Brits visa free up to 15 days Thais up to 30.

Manali these days is full on tourist town with traffic to match but Old Manali is worth a look but there are no retirement visas/extensions in India. Haven't been to Ooty since 80's but the toy train still runs I believe.

Visa to enter Burma? If you intend to enter Burma chances are you need a visa either e visa, which is recommended, or from the Embassy. Depends on nationality and length of stay.

Fortaleza was a superb spot 30 years back but these days the crime is rampant but yes being on the coast air quality would be good.

Would be worth living in Kuching for that food court on top of the 5 story car park. Must be 30 stalls selling seafood which would be a dream after living here. Was only there 5 nights but ate there each night and an absolute delight with coral trout being my favourite dish. Miri is an oil town and once being in the business didn't get far from the docks but apparently there are national parks beyond but what I saw it lacked the colonial aspects that Kuching offers.

Nha Trang is a city stretched out along the beach with a population of 450,00 half that of Da Nang. Hope you find what you're looking for.

Any particular reason Da Nang? It's a full on city these days and growing by the day. If you are looking for a more relaxed pace consider Nha Trang. It is a very popular beach destination but you don't have to travel far to find deserted beaches, countryside and mountains. No idea on international flights but there are flights between the two so check them both if you wish.

Take a look at China then revise your statement.

Before applying for an e visa check first if you require. Plenty of countries don't need a visa for stays up to 15 days including Western Europeans and Thais.

Just collect your money put it in a front pocket and go on your way. For $75,000 I might hire a lump but for what you are talking I doubt very much you'll have any problems. Unless of course you act like you've just lifted the Crown Jewels.