You fellers don't need to worry none about jackin' up one of my threads...It's just thread karma that I've got comin'...
Jack, you would have to send me dimensions & such for me to even ballpark an estimate.
AFAIK, most subs come with min & max enclosure volume (in cubic inches) for sealed & ported applications.
The killer is shipping, it was almo$t fifty bucks to get the doll casket UPS'ed to Bart.