I would suggest buying something you can play and focus on getting your chops. A good Squier or MIM Std to play, then take your time collecting parts if you really want to build one. It's easy to get caught up in modding and building guitars, I should know I'm much more talented at working on guitars than playing them. Here's some models to consider...
Fender MIM Std:
Buy Fender Standard Stratocaster Elec...ician's Friend
60's Classic Vibe:
Buy Squier by Fender Classic Vibe Str...ician's Friend
50's Classic Vibe:
Buy Squier by Fender Classic Vibe Str...ician's Friend
Squier Deluxe (another upper end Squier offering):
Buy Squier by Fender Deluxe Strat Ele...ician's Friend
Roland Cube 30x (this is the amp I mentioned buying for my niece, excellent practice amp thats gigable):
Buy Roland CUBE-30X Guitar Combo Ampl...ician's Friend
Here's an example of what a good player can do with a Squier Deluxe Strat...