The recommendations are on the money, even the tongue in cheek ones. I am assuming you would be willing to give them a price break over what they would pay an agent or atty. (Else what kind of friend are you!).
Every case is different, but what you will get as a patent (and its protection) is going to severely depend on the complexity of what they want. The fees are not going to be $10K, but they are going to be at a minimum $1,200 ($415 small entity to apply using the ABX version), $700 to $1,000 issue fees (assuming nothing catches you along the way (which it will)). So bottom line, they will invest more than "beer" money (unless they drink a LOT), but then again, with a non-provisional patent they will have something they can potentially license, even if the claims were not as broad.
As for language on the application, plagiarism is the sincerest form of flattery, so flatter away.
Now, their other option is to really go after these ideas, something they will probably not do. If they do, they will probably spend at least $5K, with an internet outfit, and at least $12-20K with a top 10 firm (that, is a LOT LOT LOT of beer).
And yes, no matter how much you explain this to them, they will probably not understand it. Now, from there to suing you for malpractice (assuming you don't do something stupid like miss the dates, etc.), that's a good question. I don't know the answer.
A friend of mine (an agent for over 8 years), suggested that you contact someone with 5+ years of experience, and pay them a couple of hours to go over your application and advice you about any shortcomings. Maybe you and your friend share this charge to show him you are not just out to scam him/her. Bottom line, if you're concerned about getting a job in this area, any experience is better than just shipping resumes (which you should be doing anyway), and going through the process will really show you how little one knows.
Best of luck,
LF