Get 2 CB whips, Cut 1 for 1/4 wave at 10M and cut the other for 1/4 wave at 6M
Build a metal spacer bracket. 3 inches long by 5/8" or 3/4" Drill 2 holes on the end and one in the center for the 3/8-24 hardware. Bolt whips to the ends of the spacer, use star style lock washers. Use a 3/8-24 x 3/4" long bolt and attach spacer and whip assembly to a ball mount. Epoxy a 3" plastic spacer bracket 5" down from the top of the 6m whip to act as a spacer between it and the 10m whip.
