So what case/power are you planning on using now? That's going to inform the answers to your other questions. Your rack looks about 50 HP wide, even if you're able to stuff the reverb tank that comes with the A-199 in there, you may find you have problems with noise/hum. I used to have a Metasonix Spring Reverb inside of a Doepfer LC3 84 HP case with a medium tank inside the case, but it was a very tight fit, and I made sure to use quality shielded RCA cables, not sure what comes with the A-199.