Ghostwriter to help me write a chapter of a self help book

Num. of words: 2000
Tone: Other
Extensive research needed: no
Extra notes: I would describe the tone as philosophical if that's a tone type?!?! It's a long the lines of self help but more about finding and giving purpose to your life rather than a rah-rah book.

I want to find someone who can write the first chapter for me. It may take some research but most of the content should be easily accessible.

For this chapter i would like 200 words on:

How life on earth appears to have absolutely no purpose. I want someone to eloquently explain the absolute vastness of space and describe earth in relative terms to the univesrse. So, i imagine it will talk about about many people on the planet, how big the planet is, how far away it actually is to the sun (e.g. if you were the size of an ant, the earth would be the size of x, and the sun would be as far away as z.
i then want it to labour the point that the sun is one star of billions in our galaxy, the size of the galaxy and then explain the sheer number of galaxies that we are aware of, all containing x number of stars and likely to have planets and and moons and so on. Then i want to explain the sheer vastness of time. How long the universe has been in existence, how long the earth has been formed, how long life has been around, how long complex life has been around and explain that complex life hasnt been around that long and then human life has been around for a very very short period of time relatively speaking and historical civilised life even less and your life as a human and the time you have on the planet is just so inconsequential its overwhelming to actually try to comprehend it and that our minds were evolved to make sense of avoiding being eaten on the savana and its likely that we can't truely and fully understand the insignificance of our own lives.

I have said 2000 words but if it goes up to 4 or so then that might be ok. I really have no idea. I haven't written a book before or used a ghost writer but i have a passion for the subject which i want to get across in the book. once i have chosen someone for this chapter then it is highly likely i will use them to help me complete the rest of the book.

I imagine that there are some ghost-writer contract templates which i can get hold of, so i will need a contract which states a typical ghost-writer relationship with the content. I have seen people get whole books written for £400 or so, so i'm not expecting to be paying thousands. I need someone who is reasonably priced and is willing to work through the teething problems of working with a first time writer.

I can discuss the tone and content in more detail. I'm not a million miles of being able to write it myself but i think that a professional writer will do it better justice.