True it is somewhat possible but for conversions it usually helps to have the pieces in front of you. You need to see how different pieces size up and fit together.
I didn't say it wasn't possible, only that it was sub-optimal. If it is a conversion that others have attempted, then the internet can (for the most part) substitute in place of having the actual bits. Beyond rudimentary planning however, you will need to acquire the models. You can work hard or you can work smart. I prefer the latter. You are free to choose whatever path you desire.
Thanks to the generous attentions of @Bowser I'm now on the Most Likes list! Time to get serious! You're next, @Canas!
Chirrut is amazing, but I thought having the moment when Baze says it and reloads his gun had a 'Payback Time' feel to it and thought it was best for that post. But now you mention him:
There's that jealously again. Being NIGHTBRINGER is complex. It's not just about being the top dog Slann... it's about being comfortable with the word hero.