Hi there.
Your best bet is to PM some of the team owners listed in the first post of the GPGSL thread. The current season is drawing to a close, with 4 races left. There are a few spare test seats though, enquire with team owners and you may be able to get a seat for the rest of this season, PLUS next season....
By my "not 100% sure check, there could be a seat with Southern Cross Racing and/or MMM Motorsport. Pm the team owners....
Then, once you have a team, your helmet paint job really can look good, with a few team sponsors on it potentially....
I am happy to have a go at painting, if you give some ideas or even reference pics of anything you want to base a design off....
For ideas, i like playing around with www.helmade.com for some design and colour options.
GPGSL Team Owner Debut - Melbourne, Season 8 - present
GPGSL Test Debut - Hungary, Season 4. GPGSL Race Debut - Adelaide, Season 5.