I know that Panthers and Fallshirmjager unit operated in the Ardennes sector in 1944.... i don't know if they worked in support of each other or not.... Ausf A was the late model wasn't it? if so i think you'll be in luck.... (assumptions/guessing neccesary)
In the case of Paratroopers..... they won't have tank support on their drops
- There were Fallschirmjager units (6th parachute Bn) working with the 17th SS Panzergrenadier division counter attacking Carentan, but they were using Stug III assault guns. here's where it gets interesting... for a panzer reserve for the germans facing yanks, Rommel orders the DAS REICH panzer division into the region. The division had 26 panther tanks.
However, After Operation Cobra (25 July), all the Panthers were knocked out by the time the 17th SS (presumably with the 6th Parachute Regiment) and the Das Reich were working together.
So you may have to assume in the case of the Panthers and para's working together in Normandy as well....
HA!!! ive found some SOLID stuff here.... the German 3rd parachute division fought its way into Losheim on 16 December 1944, and when Battle Group Peiper reached the town after river crossing delays, he took the paras under his command. They were loaded onto the King Tigers (hence the dragon kit :-) ) However, there were Panthers in this column, spearheading it! The column met varying resistance from scattered American units with bazookas, and at one point, with M-10s, M-18s and 105mm howitzers.
So, there u go.... (my reference was SS Steel Rain - Waffen SS Panzer Battles in the West 1944-45 writen by Tim Ripley) i hope this is of great help to you, and good luck with the diorama