Upgrade from 5.7 to 6

Hi,

I looking to pay a flat fee for an upgrade to Drupal 6 for my site at http://www.thebloggersguide.com

Of all the contributed modules think only extra voting forms is not available for Drupal 6, but i can live without that for now.

I need to keep the current views.
The panels pages I can delete and recreate, none of them are very important.

I've read that contrib mudules need to be updated to latest for 5 before site upgrade to 6 - for my site these modules are:

CAPTCHA 5.x-3.1
Recommended version: 5.x-3.2 (2009-Jan-04)

Content Construction Kit (CCK) 5.x-1.7
Recommended version: 5.x-1.10 (2008-Nov-05)

Feed Element Mapper 5.x-1.0
Security update: 5.x-1.1 (2009-Mar-26)

Global Redirect 5.x-1.2
Recommended version: 5.x-1.5 (2008-Dec-22)

Image 5.x-1.8
Recommended version: 5.x-1.9 (2008-Jun-16)

ImageAPI 5.x-1.1
Recommended version: 5.x-1.5 (2009-Apr-17)

ImageCache 5.x-2.0
Recommended version: 5.x-2.4 (2009-Apr-17)

ImageField 5.x-2.1
Recommended version: 5.x-2.6 (2009-Mar-16)

Node Type Filter 5.x-1.0
Recommended version: 5.x-1.2 (2008-Sep-16)

Pathauto 5.x-2.2
Recommended version: 5.x-2.3 (2008-Jun-26)

Privatemsg 5.x-1.8
Recommended version: 5.x-3.0 (2008-Jul-16)

Tagadelic 5.x-1.0
Recommended version: 5.x-1.1 (2009-Mar-29)

Taxonomy Manager 5.x-1.0
Recommended version: 5.x-1.1 (2008-Jul-26)

Theme Settings API 5.x-2.7
Recommended version: 5.x-2.8 (2008-Apr-28)

Token 5.x-1.10
Recommended version: 5.x-1.11 (2008-Apr-28)

The others are either uptodate or barely used on the site.

I don't think there is anything too complicated about the set up of the site and thus the upgrade but as I need to be sure the site's 3000 odd indexed URLs remain intact I feel more comfortable getting someone else to do it.

Please get in touch with an idea of cost and timescale.

Thanks
Clement