This is generally how I made my Ixi centaur fursuit [link]
with a few modifications for the backwards bending front legs. It was basically a lot of 'uppetry.'

This is to be taken with a grain of salt. Of course you may need to do a lot of modifications to perfect the body. The only problem I ran into my costume was the rings that I used to run the fishing line through snapped because they were plastic. Use metal And actually, I had the shoulder straps criss-crossing in the back instead of the front. Let it hang off of your shoulders at a slight 45 angle to give stability. if you ran it down your back to your belt, it would make the body more jiggly when you walk. wider the degree between the shoulder strap and the body where it's attached, the better the stability, but it won't be able to be hidden by the upperbody fur. If you're okay with having straps show, by all means, go to the middle of the 'taur body from your shoulders.

But with this design, it offers a one-person centaur fursuit, with all strings hidden, except the fishing line which will run behind your legs, across the belly, and down the other leg, so it really is quite invisible. Hope this helps!

If you use this method PLEASE send me pictures of your WIP or final product, and try to credit back so others can learn too.