I would of done V mount but no V mounts will work with 20B unless you cut up the core support and make the IC core to be your support also..
Antione, its the Apexi GT SPEC FMIC. I like the placement and its one of the few FMIC that suppose to work and not over heat the engine because the radiator sits directly behind the FMIC. If you do large FMIC for the Cosmo, I would look for set up similar to this one. I also changed out the fans from 5 and 4 blades to 2 x 4 blades. 4 blades pull bit better than the 5.
Regarding intake, I went from Blitz/M's intake to HKS RS intakes. Main reason is RS intakes are direct mount to the primary turbos. Also, because of the FMIC, I couldn't keep the Blitz/M's. HKS RS fits very nice with KN filter instead of the HKS filter.