I'm trying to get into making some customizations with VF for the first time, so I may be missing something right off the bat. 

What I'm trying to do is replace the existing quote pdf that is generated. Specifically what I need to change is the order of how the items appear on the quote line items related list of the template. I knew going in that because the template is a pdf and not a regular page layout, I would need to completely override the functionality and start from scratch. After doing a little research on this, I think the best way to do it is a custom button to direct to a visualforce page that renders as a pdf, which was a pretty cool thing I just learned that you can do with vf pages. From there it would be rebuilding the structure of the page from the ground up, which shouldn't be a problem and I think, using a custom controller to set the order of the related list.

So, I got in a dev org to start some really early playing around with this before starting to work on it in a sandbox. The first thing  I tried was rendering as a pdf which worked great, but then I tried displaying the relatedlist and that's where I ran into problems. 

This is the markup I was using to test and the error is 'QuoteLineItem' is not a valid child relationship name for entity Quote 

<apex:page standardController="Quote">
<apex:detail relatedList="true" subject="{!Quote.Id}" title="test">
<apex:relatedList list="QuoteLineItem" rendered="true"/>
</apex:detail>
</apex:page>

So, I couldn't find anywhere that said I couldn't use QuoteLineItems as a vf related list, but nowhere that said I could either. So I guess I have two questions, the first being obviously, can I reference the QuoteLineItem child relationship in Quote controller VF page, and if so, what am I doing wrong. 

The second, since I gave in and posted on here after hours of research, is whether or not I am going about this the right way. Is there an easier way to override the quote pdf with an end goal of reordering that related list?

Any help, tips, links to some good resources would be much appreciated. 

--KC