Aszental wrote:What are some homemade options i could use to get 2.6m wide...
if you are using fabric backgrounds, just bunch it at one side, no
moditications required.
if the paper roll you get is the normal 2.72 or 2.75 m, then cut 12-15cm off with a cutting tool (Knife, scissors, hand saw, power saw, butter knife, guts from a kit lens, teeth, claws, fangs, meat cleaver, jigsaw, bandsaw, coping saw, laser, water cutter, guilotine, prayer...)

Aszental wrote:...also where could i buy a crossbar that is 3m wide?
manfrotto 314 kit, or ebay equivalent.