Frank wrote:
... I prefer to enter in basic code,
which is apparently not available in EZNEC.

EZNEC data can be entered from an ASCII file. I regularly
generate ASCII files using MS Professional Basic for entry
into EZNEC. Here's a quote from the EZNEC help file:

"Wire coordinates can be imported from an ASCII file in a simple
format, either replacing or adding to the existing model. This
can be used to import coordinates from another program."
--
73, Cecil http://www.qsl.net/w5dxp