Need quick advice!

So I think I'm going to give Pyro a full-body clip since I totally screwed up on his legs... uhg, my mom is going to be sooo pissed off. -.-!
What is the cheapest blanket out there that is good for a clipped horse? I have a 1200 denier blanket already, so something lighter but waterproof. We live in Oklahoma, will he have to wear it in the summer too if I do clip him? I don't have ANY money, I'll have to go pawn my cell phone, portable DVD player and possibly my iPod to get it(I'd really rather only sell my cell phone and DVD player)... so I want the absolute CHEAPEST... If its worth extra money for quality, I might pay more for it though.
Oh, Do I have to have something to cover his neck too, or just his body?

Thanks!

You'll only need a light rain sheet right now, just something to cut the wind. He won't need anything for the summer. His coat will start growing back in within a month or less.

How did you mess up on his legs? Why don't you see if you can do a modified clip, to blend in what you've done? Use a longer blade, so you don't shave him so short. New clipper blades will be a lot cheaper than a blanket . Use a washable marker, close to his body color, to draw your clip lines, then try to stay in that area. Blend in the leg clip to a low or medium trace clip.
How Much To Clip
Peasridge Clipper Advice - Clipping Advice - Horses

You want a number 10 blade for a coarse clip. Make sure the blades are sharp. If you don't have anyone who can sharpen them for you, then buy new blades. Your blades should be clean and lubricated before you start. Your horse should also be clean. Curry and brush and curry and brush until he's as clean as possible, or bathe him if you have access to warm water.

Horse body clip

Denier rating is how durable the fabric is from getting ripped.
Poly Fill rating is how warm the blanket will be.

If your horse is full body clipped, it completely depends on the temperatures you're looking at. If it is cold at all, your horse NEEDS a blanket with some fill in it, since he doesn't have a coat to do it himself. A rainsheet won't give any warmth, other than cutting the wind and keeping him dry.

My horse is completely body clipped except for his legs and half his face. Here are my conditions for blanketing:
10*C to 2*C = lightweight blanket (100gram fill)
1*C to -10*C = midweight blanket (200 gram fill)
-11*C to -19*C= heavyweight blanket (300 gram fill)
-20*C to -35*C = lightweight and heavyweight blankets together (400 gram fill)
colder than -36*C = midweight and heavyweight together (500 gram fill)

I keep a neckpiece on him at all times as well.
When it's warmer than 10*C I let him go nude.

A clipped horse requires more care than an unclipped horse as you have stripped them of their natural ability to cope with the cold.

10 C = 50 F. Oklahoma should be above 50 during the day now.

Thank you for the clarification.

If the temperature drops below 50, I would blanket him.

Oh, okay guys, thanks :)
I think I overreacted yesterday.. My mom wasn't too upset, she kinda looked mad and then laughed at how ridiculous he looked xD so I was off the hook. I have a Med. Weight blanket and then I have Rio's light blanket that he's going to be borrowing(I didn't think it would fit him)... So I think he'll be fine. I have a hood for him that he can wear when it rains.. I bought it for Rio, but it's too big for him and it first Pyro perfectly.

And yeah, it supposed to be 80 tomorrow! Perfect for the trail ride we're going on.. he'll be the only non-sweating horse there xD