which coilform parameters best?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "John Friesenhahn by way of Terry Fritz <twftesla-at-qwest-dot-net>" <johnfrie-at-swbell-dot-net>

This will be my first attemp at a "larger" coil and can't seem to make
up my mind as to which coilform parameter might be best.  I have to work
around my .1uf 50kv oil pulse cap, 3600 sync rotory, and 5kva pole pig
(maybe two for 14.4kv). As I understand it, I will need 1900-2000 ft. of
wire, 800-1000 wraps -at- 3:1 coilform ratio.  If I use a 10in dia form and
18ga coated wire, I would get around 800 wraps -at- around 2000 ft. of wire
and 33 in. tall winding.  I could also use an 8 in. dia form, 20ga wire,
820 wraps, 2000 ft. -at- 28 in .tall winding.  I would be leaning toward
the 10in. dia but I just don't have the experience to decide which.  Any
ideas or better suggestions?  Thanks, John.