Self Directed IRA
It may be possible to self direct an IRA to the Cooperative Fund. Directions to do so are described in these instructions to self direct an IRA to CFNE.
In order to direct IRA funds to CFNE you can use the services of Strata Trust Company. An investor needs to open an account with Strata and then direct Strata to send funds to CFNE. See the linked document above for detailed instructions.