Onsite SEO improvements for chalet website

We have previously spent time and money optimising our website (www.alikats.eu) for Search Engines. However, we recently made a significant update to our website and the SEO optimisation needs to be bought in line with the changes. In particular, we have the following must-have requirements:

- To have an SEO strategy capable of handling different landing pages depending on the season (summer or winter)
- Google analytics tracking is no longer working. This needs to be udpated to incorporate the new layout of the site
- When searching for 'AliKats Morzine' TripAdvisor comes up as the first result. Our site should be first

Also, we want to undertake the following piece of work in the future (following the completion of the above) so I would like a summary of your approach for achieving the following:
Top 10 for the following keywords:
- Morzine chalets
- Morzine luxury chalets
- Catered ski chalets morzine

Please include specific examples of how you will achieve this in your bid