This is an exciting development. It would be great to have a new SOTA entity nearby I suggest you read the 9N2CDX thread on this reflector as it’s not as easy as posting a request.
If you need an outline on what is required drop me a personal email.
However please note there is a lot of work involved in mapping of candidate summits and the generation of an association manual. This will take longer than the time the MT needs to review your proposal. It might take 3 months for the MT to process your application but it’s likely you will need at least 6 months of preparatory work. Someone working on this full time could do it faster but remember most of the work is done by volunteers, some have jobs and others have full time retirement to cope with.
You need an Association Manager. You need to decide on Regions and appoint Regional Managers. In Australia we have Association Managers for each State and each State is divided into regions with regional managers. For example John VK6NU is the VK6 Association Manager and I am the Regional Manager for the Southern Goldfields Region. It’s my job to survey the candidate mountains, write the supporting documentation and then conduct reviews and update the listing and documentation for that Region. Requests for changes go through the AM to the SOTA MT in the UK.
You will find a lot of useful information on the SOTA website.