You can try adding some ethyl alcohol as preservative, as it is less toxic than BA@picholas, relating to the Reddit list of alternative bacteriostats, for the very same reasons you mentioned I wouldn't use anything other than tried-and-true BA.
My question pertains to MESO-Rx staff member Bill Robert's 2014 how-to homebrew article hosted right here on the site. I thought someone might know him personally—or he even might chime in himself on why he prefers to forego the BA, and how he ensures no further downstream complications, especially as the article is intended for first-time brewers.
it has already been done
GenXXL - AXIO - Syntrop - Biogen and their offspring | JuicedMuscle.com
but you will need at least 95% pure ethyl alcohol, not just everclear as it has 30% water. and water doesn't mix with oil.
You may even need water-free absolute alcohol.
You can first try mixing 99% oil and 1% alcohol to see if it holds fine, without wasting gear.
Nobody really knows if/how long 1% alcohol will preserve gear (albeit oil doesn't feed microbes as well as sugars or even proteins do),
so all alcohol preserved gear must be injected within 1 month (preferably 1 or 2 weeks), to be on the safe side.
Arnold brewed his own gear?
Seems to be an Arnold copycat.