Hello! Glad you like it! If you want to transfer the saves, just grab the folder called Monster Girl Chat in your users appdata folder and send it to the new computer and put it in appdata. The path to the folder should be: %APPDATA%\Monster Girl Chat\
I havent actually pushed the bigger model yet, I kind of forgot about it lol.. Give me like 30 minutes and I'll have it up! Once the download is available, just put it in the dlc -> models folder!