You can get short cables through the dealer or from fulltiltboots.com. The buckles do slide on a rail system for micro adjusting. The upper cable can be moved into 2 different positions making the cable shorter when room on micro adjuster runs out. As far as tongues, you can get stiffer ones through dealer or fulltiltboots.com Get the largest tongues sold it makes a difference especially on the size you tried on. Thats what I do and wear the same size you have tried on. The larger tongue comes up higher on the shin than the stock one. Heat molding the liners covers most fit issues out of the box. Make sure all adjustments are made before heat molding liners.

Side note on the Drop Kick, it doesn't come with a rear spoiler, which is located on the back top part of the shell, so it sits between shell and liner. This piece adds some higher rear support and takes up minimal space, but some. Also the drop kick liner is a lesser liner in respects to overall density and support compared to the pro liner of the Seth Morrison Pro. The tongue on the Drop kick is a #4 where the Seth Morrison Pro is #8 and you can upgrade easily to a #10 which comes in black.