I used to really like Sam Adams, but Sam Adams is now as close as a craft brewery can get to a Miller or Coors. Every year craft beer conventions have to redefine the number of barrels produced a year to allow Sam Adams to even be considered a craft brewery. Some of their beer is pretty good...
One gallon fermentors aren't expensive (maybe 6 or 7 dollars) if you want the proper glass vessel. I would recommend it because they are glass, sturdy, and can be easily cleaned and sanitized.
From what it looks like your beer is finished. You have a ABV of 7.61% and an attenuation of 73%. White Labs lists WLP005 British Ale Yeast as having an attenuation of 67-74%, making your attenuation very good.
So I decided to make my first extract recipe. This recipe is based off the American Rye recipe from NB and I tried to German it up a little bit:
5 gallon recipe (Partial boil - 2.5 gallons water)
6 lbs Rye malt syrup
1 oz. German Tettnang hop pellets (60 min.)
1 oz. German Hallertau hop...