1)Is it viable,of course because I think I might use the services some day.
2)well about if you should make it also e-commerce I am in love with the idea because I heard that you make a blog about good interiors so if someone likes the interiors finding a way to buy them through the blog would prevent him/her researching the world for the furniture s/he liked
Making more profit to your business since the e-commerce pays too.
Hope I was helpful get in touch
Thank you