Sorry, no other options. I don't even remember if the SROD bellhousing is a direct bolt-on or not, but it would be either that, the 95 Cobra R bell, or an aftermarket piece.
If you're considering a scattershield, try the FRPP or McCloud bells. They are the same and do not need to be dialed in like the Lakewood units. Good luck! FWIW, I use a scattershield. Back in the 70's I owned a 70 Z-28 and had a clutch let go on me. It came thru the floor on the passenger side. Could have easily been the drivers side. Have used one on every stick car since.
A regular tremec bellhousing is like $169. I run the mcleod scattershield though. Its bigger and more of a PITA to work around, but more piece of mind knowing your safer.