No drainage setup and I need some suggestions, please!

That time of the year is coming up where I have to empty my waterloop and refill it.

When I made this build circa 6 months ago, I was new to watercooling and overlooked the fact that I needed an easy way to drain the water out. So, here I am with a loop that has no way of emptying as of now and would like some your opinions on what I can do.

I've attached some photos (IRL & mockup) of my watercooling loop and would like to see how YOU all would drain this minimizing the spillage of liquid.

I would also like some advice on what parts (fittings, mostly) I should buy to ease this process in the future.

Here is the kit I purchased and that's installed in my loop right now:

http://www.frozencpu.com/products/16892/ex-wat-220/XSPC_Raystorm_750_RS360_Extreme_Universal_CPU_Water_Cooling_Kit_New_Rev_4_Pump_Included_w_Free_Dead-Water.html?tl=g30c83s137#blank

Thanks in advance everyone!

PICS:

http://imgur.com/a/DWKmp