that all sounds good. I think it best not to entirely rely on either a Philippine income or a British investment income. If you can exist on one or the other then fine and if both bring in income then you should be able to have a comfortable life. From what I've heard the biggest danger is boredom. Those who retire too early and may have another 50 years ahead of them can get bored. I think it's important to have activities and people around, that's why I like the idea of a small resort or dive centre. A flow of interesting guests should keep the mind active. Also I think you need enough income to be able to return to the UK or travel elsewhere periodically.
I just can't wait to escape the rat race and sky high prices here. £60 to fill my car now, crazy!