I have not, unfortunately. It and literally hundreds of projects sit awaiting a decent computer. I've tried ton come back to it but always end up canceling the renders. Being in a RV in the middle of no where with just my son for entertainment, I end up using my PC a lot. Lol I wish I had another one going. I dare not abuse my fiancee's little Asus touch netbook.
I could do lower quality renders like I do with other stuff, but with nebula's it just doesn't feel worth it to me. The quality loss is just too much for me to get over.
BG 035 is really nice, it reminds me of remnant supernova. I am curious, would it be too much to ask for you to paste your Render node here? I'm curious what settings exactly you're using, I know I can't do higher than MPD 0.6 and AA6 but still struggling with some smaller details and at this point I don't think it's my fractals/warpers.