I am by no means an expert but went through the same learning curve not too long ago.  i would suggest getting about 30-40lbs of LR first, if money is an issue, you can get by without a skimmer by doing more water changes.  (may eventually cost more(salt, water, and time), but less $$$ up front).  Leave that for a few weeks, testing your water periodically for ammonia, nitrite and nitrate.  once you get them all to zero-ish, you can start putting in fish.  I also suggest going to the library and getting a book on keeping salt water (i learned with Salt Water Aquariums for Dummies and i can definitely recommend it).  :-) 
		
	
		
		
		
		
			
		
		
		
		
	
		
		
	
	
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