My Roket Mc 250B

[mrk610]

New scooter owner here and looking for some info .
I need to know where I can purchase the battery and engine cover that is under the seat my came with out one. I also have a busted lock on my rear trunk . Id like to just replace the whole trunk
Any ideas where to purchase.
I also replaced the battery (CTX9-BS FP) with a duralast from Autozone was this the right battery.

Thanks in advance.

Mike K in South Jersey