Your big task is going to be getting the speakers out from the 'front wall' yet not having them too close to your listening spot. Very few speakers perform well against the wall and Harbeths in particular are noted for loving free space.
Off the cuff, I think it's possible that the 40.x models may be too much speaker for your application. The SHL5+ and 30.x might be right, and I'd consider the C7 models as well. So far I've only listened extensively to the C7s in a semi-near-field setup (around five or six feet away) and my 30.1s have just arrived.
This means (among other things) that though I may be first to answer, you'll probably get more comprehensive replies before too long. I will say that the Harbeth C7s have been hypnotic. I'm obviously hooked which is why I've purchased a second pair (the 30.1s). It'll be hard for you to go far wrong.
Off the cuff, I think it's possible that the 40.x models may be too much speaker for your application. The SHL5+ and 30.x might be right, and I'd consider the C7 models as well. So far I've only listened extensively to the C7s in a semi-near-field setup (around five or six feet away) and my 30.1s have just arrived.
This means (among other things) that though I may be first to answer, you'll probably get more comprehensive replies before too long. I will say that the Harbeth C7s have been hypnotic. I'm obviously hooked which is why I've purchased a second pair (the 30.1s). It'll be hard for you to go far wrong.