As you know the Rollei Infrared is converted by Maco from the Agfa Aviphot Pan 400 S.

Since end of last year this film is converted into 35mm DP by Agfa themselves:

Agfa ASP 400 S

Agfa only sells bulk, but their German distributor Coloprint (www.coloprint.de) sells the 30.5m core version to customers within the EU (=hassle-free payment).