I need kitchen layout options in Sketchup (UK)

We are planning an extension to the rear of our semi-detached house, mainly to increase the size of the kitchen and to add a downstairs WC. I have drawn accurate plans including services in Sketchup Pro (it's not pretty, but it's accurate) and added the proposed area of the extension. In order to progress with the extension I need to visualise kitchen layouts in order to plan drainage / power / extraction etc. Detail / rendering isn't important, but I need to know where the main appliances will go, and ensure that we have a practical kitchen layout with adequate work space and storage to build on at a later stage. At this point, the bricks and mortar are very flexible, ie., windows, doors, walls etc. can be moved within reason. We would like to have several designs to consider.

The only specifications at the moment are as follows:

• Induction hob
• Island – surface only, no appliances. Storage below. Maybe breakfast bar.
• Double oven at high level
• Built in microwave
• Double bowl (2 x 1.0) sink
• Built in fridge / freezer (50/50) or American style if space permits
• Downdraft extractor is an option
• Gas meter location would preferably not change
• UK kitchen standards, eg., DIY Kitchens, Wren etc.

I am more than happy to answer queries / take photos / measurements etc. during the course of the project.