I'm not 100% sure, but those two may be slightly different in mechanics and one may not be used for the other's place. Best way to be sure is to find out the respective Apple part numbers. If the said part numbers are identical, then bingo!...
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If you have residency in USA (or say North America) you can check with the OWC website. They have all kinds of replacements, upgrades inc. in-house modification service with some additional cost. But it's a turnkey type of service, which should put you on the safer side since you're saying you're inexperienced.
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Just noticed that you're in Australia. Well, OWC can still help you out partly: you can purchase a SSD and additional RAM modules from OWC at a reasonable cost and receive them in Australia. I hope you can find a local
Mac experienced "private" repair/service shop who can help you out with the installation and data transfer. There should be one, if you're living in one of the big owns...