Spirit renders to 89% - 92% and then stalls

I truly regret trying to get MarketPress to work on Spirit. Been a headache from the beginning to ... (I would say to the end, but I still can't even get there). Latest BIG problem is I am trying to do some critical edits and can't even access Upfront/Spirit. It zooms to around 90% and then just stalls out. I thought I had seen a thread but was unable to find it this morning. I have disabled all plugins, yada. Can't seem to get it all the way there. Any ideas?