From a dear brother:
Sh Jawad found a scanned pdf version of Imam Abdullah Sirajuddin’s sharh on the Bayquniyya, which is very hard to find outside of Syria, especially in light of the strife there. I was fortunate enough to get a copy in Amman a couple years ago, but it is a rare find.
As you may know, the author is Dr. Nur al-Din Itr’s shaykh and father-in-law. Sh Samir is currently teaching his book of Shama’il at the CMC program (Sayyidna Muhammad Rasul Allah), and he also took hadith from him. Sh Abd al-Rahman al-Shaghouri called him (Sh Abdullah) the Qutub of mahabbat al-Nabi (S).
We started reading it with Sh Jawad, and I’m finding it very beneficial alhamdulilah. May Allah SWT have mercy on all of the scholars of the Ummah, and all the Muslims, and allow us to benefit from their great works.
at-Tahawi 
Assalam alaykum,
Can you help me find the commentary by بدر الدين الحسني Badr al-Din al-Hasani?
Thank you.
It’s available with Suble-rashideen.com in Al-Madinah al-Munawwarah, as well as this site in the UK: http://www.loohpress.com/index.php/al-durar-al-bahiyyat-fi-sharh-al-mandhumat-al-bayquniyyah-shaykh-m-badrul-deen-al-husayni.html
Called الدرر البهية في شرح المنظومة البيقونية.
السلام عليكم
As you mentioned, hard copies of this book have been difficult to find for the past few years. I ran into the same problem so I prepared it to be available through print on demand services. I’m sharing it here in case anyone else is looking to get hard copies of this book.
___
Available from Lulu and Amazon. The copies from Lulu have glossy covers while the copies from Amazon have matte covers (which I personally prefer). Free shipping/delivery from Amazon if you live in the UK or if you have Amazon Prime. You can choose to purchase from whichever store offers better shipping prices and times or based on which type of cover you want.
Lulu
http://www.lulu.com/shop/ʿabdullāh-sirāj-al-dīn/sharḥ-al-manẓūmat-al-bayqūniyyah/paperback/product-23374924.html
Amazon
US: https://www.amazon.com/dp/1978491344/
UK: https://www.amazon.co.uk/dp/1978491344/