MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Nice, PETG is way better long term, PLA is too creepy, and crispy, for printer parts, so to speak.
I think you will get it to work, it may take some filing / sanding / drilling, to get everything to fit, but it will fit and it will work. The best way I found to clean the edges of PETG is slicing with a sharp razor blade, and sometimes scissors, it leaves a clean look. Please post some finished pics, or near finished, because no Tarantula is ever actually finished.