Use the internet to get advise and opinions, use your lhs to get parts- never trust the word of most lhs staff as they will sell you junk or unsuitable items just to make a sale and/or clear slow selling items. This is a universal truth...
Anyway, dont despare too much- you can always sell or trade your sidewinder setup if you can get it too run cool, then put the money towards and MMPro & whatever motor is flavour of the month ( hvmaxx 4.5 on 2s lipo maybe, or a medusa 50mm ~3300kv even- SC isnt really my thing... ).