Best Option Tiger Cage, 67 Camaro?

[Atomic 67]

After autocrossing several events this past year I have come to the realization that I cannot stay in the bucket seat very well. I would definitely like some advice on my options in regard to installing a 4 point roll cage or other options that may be out there...I definitly need 4 point seat belts installed. Appears Tiger Cage may be my best option since car is completly finished. The trunk is finished out too with a sound system. Attached are two pics.

Any helpful tips?

Brad