Chiller question

I know I have waited way too long to buy/build my chiller, but now that I am breaking in my AG setup with full boils, I believe I will need one. Here is my deal.

AG Brew Day scheduled for this Fri/Sat. I have my new 15 Gal pot, and everything else. Problem is I am planning on building a CFC, though my pot has not yet been drilled, and I am unsure of if I will be able to drill it in time. Since I want to make a CFC, is it possible to use one without a valve on the boil kettle (make a siphon somehow, or a SS or copper homemade racking cane for hot wort, or maybe transfer it back to the mash tun to drain force it through the tubing to cool?). Or should I just buy extra tubing and make a 1-time use Immersion Chiller and gift it to my friend who wants to join me this weekend and is in the process of buing equipment to start brewing himself?

Opinions/Guidance please.

Bump

make the immersion chiller and gift it for your buddy!

never rush stuff ! thats when bad things happen if you dont have time to do it right dont do it! and i am sure your buddy will love the gift

If you don't have time to drill your keggle, how do you have time to make a CFC? I'd say the best use of your time is to drill your keggle and get a weldless fitting in there with a valve and then make a quickie immersion chiller - although with copper prices that's not the cheapest thing to do. I know people do use gravity with CFC's but unless you have a lot of height differential it will be slow going. I used a pump with my CFC. I have since reverted to a large immersion chiller.

Appreciated. My main problem lies in the fact that I have the proper tools for making the CFC, but not the skills/tools for drilling the kettle. I think I may just make the Immersion first and then upgrade to the CFC once I get the kettle drilled. Not to mention gifting it to the new brewer will mean he will have better beer with less investment that way we both win.