Farview said:
Chandler made the best necks in the 80's.
The best made necks in the eighties and nineties where made, without question, by Warmoth. These days, a lot of companies are making fine necks, including Warmoth.
Go to
Stew Mac's website and get some books, including Dan Erlewine's repair book, and give them a read. They will give you step by step instructions for assembly.
The other possibility is you could have your guitar assembled by a good repair shop. Most repair shops assemble hundreds of Strats/Teles a year, if you include repairs, and so they have a lot of experience in doing so. In our shop, if you have a finished body and neck, you are looking at about $600-$750 for assemble, if we do everything ($65 an hour for as long as it takes). You can reduce that cost, however, by doing the parts you are comfortable with (for instance, perhaps you are comfortable with a soldering iron, and can do your own electronics), which can make a big difference in the cost.
Try not to think of this as a way of saving money, because then you will invariably cut corners, and you will be unhappy with the results, or else you will do everything right, and it will end up costing you double what it would have other wise cost.
Light
"Cowards can never be moral."
M.K. Gandhi