1. Big Bang conventional science claims that space and time originated with the Big Bang as I understand it.
In the traditional sense of General Relativity, yes, although there are many extended scenarios where this is not the case. However, I would hesitate to call them 'Big Bang' scenarios as such, even though they contain the same observed expansion and other Big Bang features (CMBR, etc).
2. There was no outside of the BB and no before the BB as I understand conventional science to claim.
Yes, but with the same caveat as point 1.
3. The Biblical God claims to have no beginning nor end, being an eternal supreme being.
Would certainly agree to that.
4. The Biblical God claims to exist in a location in the universe where a throne, angels and other beings exist in the universe.
Huh? He does? Can I go visit then in my spacecraft? Should I be concerned if enough atheists (human or otherwise) decide to take a visit with an almighty arsenal of Planckian mega-bombs... I'm sure god will be fine, but those angels and that throne could take a beating! You'd have thought god would have learnt after that debacle with Ar-Pharazn...
5. Problem #1: No outside of means no space for God to exist in before the alleged BB.
How many dimensions of space does God require to enable his existence? And of time? Is he 3+1 (3d space + time) by nature, or is he more the 25+1 of bosonic string theory (I've always seen fermions as the devil's invention)
6. Problem #2: No before the alleged BB for God to have preceeded the BB according to conventional science.
If god is bound to our time and he is everywhere in our universe then do bits of him get destroyed in black hole singularities? Or does he withdraw his presence - just in time? Perhaps god has never seen inside an event horizon!