Base wax - HF5BWX, HF6BWX or LF6X
Glide wax - HF10BWX or DHF104BW marathon
Fluor - FC10X powder ironed in. FC8XS Warm Turbo solid block as lower cost option.
Accelerator - HVC Warm liquid
With multiple loops on a 1.5 km course after two days in the 50's, the 'snow' will break down into ice grains. A hard base wax like HF5BWX or HF6BWX is necessary for wear from the very abrasive ice. The '10' glide wax and fluor will deal well with the moisture. BW is a lubricant additive reducing the coefficient of friction in dirty icy snow.