I have 2 old bookshelf enclosures already refinished with cutouts for a 5 1/4" driver and a 4 1/8" (1-inch)tweeter. The enclosure dimensions are 13"x8"x9". It has a 2" diameter port. Anyone know a kit that will work with these enclosures without any woodworking adjustments? I don't have any woodworking skills and would like to use these enclosures rather than by new ones.