I have a RSS feed being built by the Views RSS module. I can configure the pager to display a certain number of items; however, some consumers of my feed only want a few of my latest items from my feed. So I need to pass a limit in the URL to the number of items in my feed. 
something like this:  

www.mywebsite.com/rsslatestnews/50 - For 50 items.  
or  
www.mywebsite.com/rsslatestnews/2 - For 2 Items.  

I've tried implementing the hooks: 

 - hook_views_pre_build
 - hook_views_post_build
 - hook_views_pre_execute
 - hook_views_post_execute
 - hook_views_pre_render
 - hook_views_post_render

To no avail, I think the RSS Views module is in some way skipping 
the typical order views hooks are triggered.

My question is this: 

Which hook can I use to set the limit of items displayed by my RSS view?