Great altiverb like cathedral IRs for use with guitar rig or max for live?

im working on a record and i just switched over to a 64bit DAW because i was getting a ton of crashes and memory issues with large sample banks.



I was using altiverb 6 cathedrals as a key part of the sound for this record, however i can not afford to upgrade to altiverb 7 at the moment.



So far nothing in Guitar Rigs or Max for lives convolution processor comes close to the reverbs i was getting in altiverb.



Does anyone have a source on some really great cathedral IRs that will work with guitar rig or max for live? Or a suggestion for a different reverb that will get me there?

Great altiverb like cathedral IRs for use with guitar rig or max for live?