Vivosun is not bad, i have a lot of their stuff including a 4x2x5 tent i got for $140. Very sturdy compared to some of the others I have.
If you're on a budget, shop around. Just the other day I bought a secondary tent. Hydroplanet was the brand. 3x3x6 tent was $80. Their was only a few in stock, it's unavailable now. Great deal. Just put it together and although i don't feel the bars are AS sturdy as the vivosun, for a smaller operation with 1 or 2 lights, it should be fine.
I have a lot of different lights, but again, if you are on a budget. One suggestion would be Sunsystem 150W HPS. Cheap hps that produces well, i'm using 2 of them. Got them for $75-$80 each. Getting 8-12oz per run with 300w (4 plants). The cheaper Chinese LEDs will work as well, but won't roduce the dense nugs towards the end of flower. You will def get way you pay for with those.
Also the VIVOSUN/IPOWER lines of HPS/MH combo's aren't bad. 400-600-100W. COB and LED are both popular too, their is basically an endless amount of options for lights. Biggest thing is make sure you are going to be able to cool whatever light you use. The stronger the light, the more heat it will probably put off.