A couple of comments on the opening:
4...e6 is the Taimanov, not the Paulsen. The Paulsen is 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6.
5.c4 is bad because black can respond with 5...Nxd4 6.Qxd4 Ne7, winning a tempo on the queen.
After 6...Ne7 White plays 7..Bg5 and then exchange his Bishop with Knight
Interesting variations indeed... so much to see!