I am also a few jumps away from my A license. Right now I am jumping a spectre 190 and I am packing it in a D-Bag built for a 150. The reason for this being is it is demo gear and thats what they have attached to it. The rigger that taught me how to pack had to help me the first couple times, because I am still relatively new to packing and all. I can pack it now though, with all of 9 pack jobs under my belt. If you have trouble just ask someone that knows the proper technique. That is all that it boils down to really. As for wing loading as of my 12th jump I was jumping a canopy at about 1.18. It just depends on what you are ready for. Defenitly don't chose a canopy just because it will fit in a certain container. But packing is all technique which can be easily learned