I've done a couple of kit brews but really want to more on to AG, as I've just bought a 15 litre pot and found an interesting looking recipe for extract thought I would give it a go before sorting out some AG kit. But like so many newbies am nervous and looking for reassurance that I've got the right end of the stick.
The recipe I posted
here
My plan is to either make half (i.e 10lt) or boil 10 lt and let it down with another 10lt in the FV a bit like a kit. Or is that a bad idea?
If I went for half does that also mean half the hops?
Will cool in a sink with cold water and some ice around, but then I get a little confused on transfering from boiler to FV

I will be left with hot and cold break floating around and perhaps the hops if I dont bag them (I will bag the grains) should I just syphen like raking off, poor, or shove a (sterile) jug and transfer by hand?
Any other advice for a worrying first timer extract brewer would be appreciated