It means something like "I couldn't care less about it, but I will receive what you are offering anyway." I am not sure about the context of the sentence, so the translation could be slightly different. He is speaking as a person on　an upper position. This could sound arrogant and rude..maybe deliverately. ～してやる is a casual form of ～してあげる

It kind of means 'Come on. Hand it over.' It's a combination of もらう＋おく＋やる。如果把它译成汉语：(快点)把它递过来！或者是　把它拿来！

"And we'll ask"