FIRE with £150k ($180k) at 30 - am I crazy?

Hear me out before giving me hate xD

For purposes of this community I've converted all figures into USD.

I am 29m, living in UK making $130k a year in a MCOL area. By the end of this year I expect to have $180k saved in a tax free investment account plus about $20k cash as an emergency fund in the bank.

I am planning to quit my job at the end of this year and move to a very LCOL country where I already own a house due to family connections there, and I am a citizen. This means I will be living mortgage/rent free with all bills coming to no more than $50 a month. The average salary in this country is about $500 a month, and people pay rent and raise families from this.

Running the simple numbers, $180k investment would allow me to withdraw $7,200 a year, or $600 a month using the 4% rule.

I want to live quite a simple life, don't need expensive items or travel, and my skill will always allow me to make money adhoc if I need to.

Am I crazy for thinking that I can actually make this work? Is there anyone else living in a very LCOL country with a similar monthly income?

Welcoming all comments, including hate : )