Micro wave transformer coils for axial flux alternator

The question would be why?

Why not just follow the existing design to the letter, that way you'll get something that works. You can start experimenting and "saving" money later.

No the ? is

I have coils that I have taken out of micro wave transformers ,one coil is fine wire the other is 14gauge and they are wound very tight and I would like to use the 14ga coils in a axial flux alternator but they are larger than the Hugh Piggot design so the magnets need to be larger or multiple . I am wondering if this will work well and how should I arrange the magnets . The coil dementions are 2-3/4"wide OD x4-1/2"long OD x5/8" thick and the hole inside is 1-3/8" ID x3"ID. And can I use the fine wire coil or will they over heat ? the wire is very thin and there must be hundreds of feet in the coil . Thank you for you input . Brian