You are correct with the code for MP2 on R34, here is most of the paint codes used on different models .
BNR32- KH2 - Gun Grey Metallic
- KG1 - Jet Silver Metallic
- TH1 - Dark Blue Pearl
- AH3 - Read Pearl Metallic
- 732 - Black Pearl Metallic
- 326 - Cristal White
- KL0 - Spark Silver Metallic
- BL0 - Greyish Blue Pearl (special order)
- AN0 - Wine Red
BCNR33- AN0 - Super Clear Red
- BN6 - Deep Marine Blue
- KH3 - Black
- KL0 - Spark Silver
- KN6 - Dark Grey Pearl
- LP2 - Midnight Purple
- QM1 - White
- BT2 - Champion Blue
- KR4 - Sonic Silver (Post 1996)
- AR1 - Super Clear Red II
BNR34- TV2 - Bayside Blue
- QM1 - White
- KR4 - Sonic Silver
- KV2 - Athlete Silver
- GV1 - Black Pearl
- AR2 - Active Red
- EV1 - Lightning Yellow
- LV4 - Midnight Purple II
- LX0 - Midnight Purple III
- WV2 - Sparkling Silver
- QX1 - White Pearl
- EY0 - Silica Breath
- JW0 - Millennium Jade
Sorry no idea where you can get from