If you have .deb files of all the apps you want to install you could try approach that has been good for me at least.

Copy all your .deb to one specific folder and then give this command in terminal This should then install all the apps located in that folder. You should, however, pay attention that all dependencies are available before hand and you should not install apps that require something "special" like rebooting the phone etc. I use this for all basic apps and it has worked for me. Never have used that N9QTweak option, but usually everything works well with Schturmans app.

I would encourage you to try to find as many apps from warehouse as possible and install them from there.