Really sorry to hear this and I genuinely feel for all the Bradford fans. You are part of a big club truly established within English RL.
From our experiences I offer my humble opinion:-
1. Don't pledge money to the existing board. They have continued to fail to deliver and the club is in a major mess. Pledging money to the current board would just be a stay of execution.
2. Swallow some pride and write off this season.
3. Go into administration and hope for a quick turnaround. Investors have been sniffing around your club in the past and some if not all will reappear.
4. With a clean balance sheet and reformed club it is easier to develop revenue streams with lower costs.
5. By next season or the year after you could be totally reformed with a stronger squad, plus new found faith from fans in a board/owner they can trust.
Admittedly it is very painful in the short term but long term it creates a brighter future.
Whilst the RFL will deduct points for administration, if you can write off the season in your mind it will be easier to take. Think ahead to next season. With 2 further years prior to the new franchise there is more opportunity for new owners to prove themselves.
Shares in a shareholders trust can give a shout but should, I think, only be pursued if you can get rid of the current board. Buying shares in the existing set up is just delaying what looks inevitable and you are likely to lose all your money.
I genuinely wish you well and know that the next few weeks will be very painful. Bradford are a great club and will rise again in some form or other.
Yours in RL, always.