can anyone tell me will i be able to replace the sparkplugs fairly easily. or are some of the spark plugs really hard to get at and require a dealer to get at them??

For the 30v, you have to remove the coolant resevoir (driver's left) and part of the air intake (driver's right) to get at the plugs closes to the firewall. Not as bad as it sounds, a DYI for sure.

HTH

Bert