Hello Mr. Rhudd,
Based on what you've said I am assuming this manuscript has never had the attention of a professional editor.
Relevant Skills and Experience
First of all, editors do not quote by the number of pages, it is usually based on the word count. I based my bid on a 50,000 word manuscript and would adjust according to actual count.
Proposed Milestones
$200 USD - Initial readthrough and evaluation including recommendations for deletions and/or additions.
$200 USD - Line by line analysis of grammar, spelling, punctuation and word usage.
$155 USD - Final proofreading and suggestion.
I do a complete editorial package including: structural, grammar, spelling, punctuation and story flow for one cent US, per word, satisfaction guaranteed. This is a rate between one quarter and one half of the industry standard. I guarantee when I'm done your manuscript will the best it can be without changing your voice or storyline.