Saving and loading a Background object state using NSCoding - cocos2d-iphone

Question

In my code I create an instance of the ScrollingBackground in the BackgroundLayer and the BackgroundLayer also creates an instance in the GameScene. I want to save the ScrollingBackground state so when a player dies I can return to it unchanged. Here is the relevant code:
ScrollingBackground.m:
-(id)initWithBackgroundLayer: (BackgroundLayer *)layer{
if (self = [super init]) {
backgroundRepeatCount =0;
scrollSpeed = 0.0;
backgroundCount = 0;
backgroundArray = [[NSMutableArray alloc] init]
bg = [CCSprite spriteWithSpriteFrameName:#"bg1.png"];
bg.position = ccp(s.width/2, s.height/2);
[currentBatchNode addChild:bg];
bgSwap = [CCSprite spriteWithSpriteFrameName:#"bg2.png"];
bgSwap.position = ccp(s.width/2, 3*s.height/2 -1.0);
[currentBatchNode addChild: bgSwap];
.
.
.
}
}
-(void) encodeWithCoder:(NSCoder *)aCoder {
[aCoder encodeObject:self.bg forKey:#"bg"];
[aCoder encodeObject:self.bgSwap forKey:#"bgSwap"];
[aCoder encodeObject:self.displayedBg forKey:#"displayedBg"];
[aCoder encodeObject:self.backgroundArray forKey:#"backgroundArray"];
[aCoder encodeObject:self.currentBatchNode forKey:#"currentBatchNode"];
.
.
.
}
-(id) initWithCoder:(NSCoder *) aDecoder {
self = [super init];
if(self != nil) {
self.bg = [aDecoder decodeObjectForKey:#"bg"];
self.bgSwap = [aDecoder decodeObjectForKey:#"bgSwap"];
self.displayedBg = [aDecoder decodeObjectForKey:#"displayedBg"];
self.backgroundArray = [aDecoder decodeObjectForKey:#"backgroundArray"];
self.currentBatchNode = [aDecoder decodeObjectForKey:#"currentBatchNode"];
.
.
.
}
}
EDITED:
How can I save the above state?
How can I load it again?
Is this the right way to save CCSprites and CCSpriteBatchNodes?