need help

[yamaha blaster]

So the YZ is in need of chain and sprocket and I need them before March 20th anyways on RMA I found a chain its D.I.D with a 7200lb tensile strength I'm on a budget so I can't get an o-ring chain. Or since the most I ride in should I get and o-ring chain?
DID 520 Chain | Rocky Mountain ATV/MC
This is the front sprocket all the reviews are positive:
RMA Front Sprocket, Standard 14 Tooth | Rocky Mountain ATV/MC
This is the rear sprocket again all reviews are positive:
RMA Rear Aluminum Sprocket 50 Tooth Blue | Rocky Mountain ATV/MC

 

[yamaha blaster]

Ok I seriously need help. All I ride in is sand and a little bit of dirt; I don't want a chain or sprocket which is going to be junk after a few rides, and I read that x-ring chains are the best for sand along with steel is the best sprocket for for slower wear. I am not getting what I posted before because I want steel sprockets so what do you all think of this set?


Primary Drive Steel Kit & Gold X-Ring Chain | Rocky Mountain ATV/MC