dont worry, just giving you shit but I'd try and tidy things up sooner rather than later - pests and diseases like dirty places. add moisture and high temps and you could end up with a problem thats hard to fix so keeping it clean is a good idea. also - dont forget the light reflects off the floor too so your lighting will be a bit more efficient with less loss if you get rid of the junk.
the brand of your tent is a pretty minor issue - so long as you can keep the temps under control, have good ventilation and a clean space you'll go a long way towards a better grow. will be hard in a caravan but there's ways to increase ventilation that wont break the bank. an air intake low down and a vent high up would make a big difference for summer - just board that shit up in winter if it gets too cold