Thanks a lot Rajesh for your suggestions and tips.
Devialet works well with B&W,PMC, Sonus Faber, Wilsons and few others, I have read it in Devialet forums. I have used with Harbeth compact7 and works well with it no doubt. I have heard Elac 403 and it is a good bookshelf speaker, I will look in to Elac Adante . UK brands are priced bit more in US compared to Japan and UK(obvious) . So I am bit inclined to US brands to get more bang for the buck. There is a Devialet dealer in my place but he has only European speakers with him and no US brands

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Bargaining I am bit bad in that, any idea what percentage you can ask for discount?