Spend nothing extra now. Wait until you've been aboard for a while. Then a little longer. Your priorities will change. Make sure you have a sea trial.
Don't buy new sails, existing ones will be fine.
Don't buy a liferaft immediately, wait for your first big trip. Meantime, tow your tender.
Don't buy an outboard - waste of money, time and effort. Get an Avon Redcrest and a decent set of oars. I sold our outboard 3 years ago and haven't regretted the decision yet (well maybe once, briefly).
There are some muppets out there Terry, but not all newbies will be muppets. Some will have 'own boat tuition' and practice practice practice in benign conditions... and take onboard the fact that they are inexperienced.
Mark. Do a navigation course. Do a practical course. Get some own boat tuition the first time you take you new toy out. And practice, in benign conditions. And stay away from Terry for at least a year