You will most likely not find a stand-alone receiver that is compatible with that Transmitter, as it was liely made to be used with that drone and that drone only.
I could even find an actual manufacturer after looking up the manual the manual, just an importer.
With a whole lot of know-how and equipment I am sure you could identify the protocol and if there is a compatible receiver but I think your best bet would be to get a cheap TX/RX combo and be done with it.
I haven't had to deal with getting a new TX in a while and I am pretty much locked to the spektrum dsmx protocol by what I already own anyway So I can't tell you what to get... but there's plenty of threads on that if you do a casual search of the foruns,
like this one.
Another thing: Try not to open multiple threads on one topic across the different forum sections. That makes it hard for everyone else to keep up.