Don't want to sound negative, but I want to second the idea that F&F is not a good approach. If you must due to real time constrains, still plan a real funding round for asap afterwards, and only take the minimum from F&F.
To your question, how to approach F&F:
They are coming to the meeting because they know you. But they also know you as a F&F, not a business exec. Keep that in mind, you may have to demonstrate your qualifications before talking shop.
Prepare a short presentation on the investment opportunity to match the investment skills of the audience. Avoid equity deals (long-term, cumbersome, higher potential to hurt relationships if things go south.) Offer mild/minimal return, 1yr terms or the like under the expectation that there will be another funding round shortly after. F&F do not need an awesome deal, they are mostly listening to you because they like you and want to help.
Do not accept the money as a personal loan, because if you fail you won't be able to pay back, and it will add tremendous baggage to the relationship. Accept it only as business investment and clearly articulate the risk of failure and losses.
Sidebar - Word of caution:
Don't get caught in the trap of "we are missing a great opportunity if we don't move fast."
Any venture worth doing is worth doing right. There always will be a thousand good opportunities for a solid business idea - now and a year from now. If you haven't been able to prep for funding, articulate your strong position to potential investors, get organized and raise cash properly, then statistical chances are high that you are simply not ready for prime time and there may be serious pitfalls in your current business plan. It is a very hard thought, but embracing it early can be the difference between success or pain 6 months from now when you go back to running out of cash (and in a good deal of debt.) Consider a review of your circumstances with a clear mind.
I understand your frustration. The quest for funding/startup support can be overwhelming and disheartening at all levels.
I think the most useful thing I can follow up with is to recommend that you work on making more connections and expanding your network within the field that your business is targeting. I'd say that the best place to find like minds that will be passionate about your idea, is in the field where people work on similar ideas.
You are more likely to raise curiosity and positive awareness amongst people who already understand what you are doing. Chances are the more you connect with others in your industry, the more likely it will be that someone with the correct "angel capacity" will learn about your project and become interested.
The second thing I can add is that funding is not the only way forward, that's why I used the expression "startup support." I don't know much about your project so I'm not entirely sure what are the things you need most, but lets say that you need help with manufacturing, then you could partner up with a manufacturer that could bring your vision to reality - then they could carry the expense of production in exchange for equity (which is essentially the same as getting $X from a VC to cover production costs in exchange for the same equity.)
This has its own problems and pitfalls, but building mutually beneficial partnerships can be a cost-free process capable of yielding similar and better results than actually getting funded.
Finally, I wouldn't mind taking a look at your project. Feel free to send me your plans/sales pitch for review. I'll be happy to give you additional notes via email.