Disconnecting everything will facilitate installing and aligning the CAs and avoid preloads. Most aftermarket CAs are installed on lifted Jeeps which means longer coils which are harder to fully unload. I did not remove the coils when I installed mine.
Similar to installing coils you can try the minimalistic disassembly approach for convenience but this should provide best results.
If you are uncomfortable cutting the CA bolt, try removing the bolt for a while, then you will be grateful for the cutting option.
What CAs are you using?