You will need to license full-perm animations from animators to use in your furniture. The licenses that are required to purchase full-perm animations will almost always prohibit their use in furniture being sold as M/C/T (full-perm), as they require the builder buying the animations for resale furniture to set the permissions for the animations to "No Transfer.". I have never encountered a licensing agreement that allowed for licensed animations to be included in full-perm products.
There are lots of cheap and freebie 'full-perm' animation sets sold on the Marketplace, but many of these are extremely old and rudimentary, or stolen, or both.
If I were making/selling full-perm furniture, I would either sell it as unscripted and let the person purchasing it add the animation engine and animations, or sell them with AVSitter installed. Full-perm AVSitter scripts can be obtained for a L$2,999 donation to the creators, or for free by assembling the open-source scripts yourself (or finding someone who has assembled them already). That way, the builder can add the animations they wish.
I used to make and sell furniture and it was challenging but fun! I wish you all the best in your endeavors.