Homemade Fermenting Equipment

Since my start up kit was $140, I was curious if I could build one for cheaper and it still give good quality wine. 

Made primary fermenter out of Lowe’s® 5 gallon paint bucket. Drilled hole in lid.  Put rubber washer in and tried to silicon into place. Unsuccessful so left a little loose. Bought a 5 gallon water bottle at Lowe’s. Pulled off inside clear plastic cover. Bought size 1 rubber bung and airlock fits perfectly.  The plastic bottle on the far left and grey bucket are the ones that I made.  The other two are bought.  Hard to tell which is which, right?