He doesn't have anything he wants and if he did it would be so expensive I wouldn't be able to afford it.
"彼は欲しいものがないしあっても高価で買えない"
- He doesn't have anything he wants and if he did it would be so expensive I wouldn't be able to afford it.
- He doesn't want anything and if he did I wouldn't be able to afford it.
- There isn't anything he wants! If he did, it would be so expensive I wouldn't be able to buy it.
「彼はあまり欲しいものがないし、あったとしても車とか高価なものなので買えません」
- There aren't many things that he wants, and if he does its like a car or something expensive like that so I cannot afford it.
アメリカ合衆国 
