interesting concept, a 11 dreadnought list is cool. Some forseeable problems is HQ, and im fairly sure Blood angels can't take techmarines as HQ so im interested in what you will make.
Well, despite the lack of Techmarines- I did what I could.
I went with Tycho - cause he too can 'go' DC, but also cause he has Specialty Ammo. Has a greater AdMech feel to him, cause of that. Plus, he extends that to the servitors - letting the whole 25 man blob get variable weapons.