wtb filter with skimmer for a mother thats been threw the ringer edmonton

[zuzes20011]

hey guys seting up a tank for a friend of mine that just got her house back from the insurence companey she was forced out of her house after a ice damn built up in her adic and when it un froz in the summer time it flooded her house so her and her 2 kids just got to move home after 2 years

im looking for anything salt water realted free or at a good price mainly looking for a light for a forty gallon tank and a filter slash protin skimmer
thank all for any help you can give