There is a lot of data related to this hand cart in the game data, but some of it is missing, there is an image of it though. Weight of what the cart can pull is removed from the code, I will probably be putting it at a 1000 lb (small, large, and conestoga can each pull 3000, 4000, 5000 lb).
I have decompiled (painstakingly) each function of Oregon Trail 1.2 (this version because it didn't rely on QuickTime) and then fixed a laundry list of issues and make sure it works.
You can get the version from here you do need one of the original discs (1.0, 1.1, 1.2) work out of the box, there are some differences in text, it does have some store and hunting table issues on version 1.0 and 1.1.
For version 1.3 (25th anniversary edition) / Cereal Box Version you can put it in the DATA folder of that as well, for the video files, you will need ffmpeg to convert them with something like: ffmpeg -i 101.MOV -c:v cinepak -c:a pcm_u8 -ar 22050 -ac 1 AVI\101.avi
Version 1.31 it has damaged 69 pictures so not recommended to use this one.
The Purple version is a Mac/PC hybrid, you'll have to rename OregonII_1.dt2 to OregonII.dt2 for it to run + convert the video files.
1.1 Sampler will not work, because it is a demo version with a lot of missing data.
I should employ this method of tying them together, it would only cost me my hopes and dreams!