Timing belt job on 87.5 CGT

[David]

Time for a timing belt job. I plan on having the belt, idler pulley, water pump and water pump seal reaplaced. First, when you order a water pump (from PMC), do they come with a seal, or should I order one? Second, PMC lists a Timing Belt Roller which is about $57. Is this the same thing as the idler pulley? And third, PMC lists 3 water pumps for the CGT, but noe specify whether they are for the NG, Geba, Graff and GMB, all showing part number G3000-24100. All are about the same price. Is there any quality difference? Also are they the right pumps for my NG powered CGT? And lastly, anybody have access fto a labor book? If so, what is the listed number of hours for this? I know it's 3 hours for just doing the timing belt & idler pulley...

TIA,

Dave
1987 CGT Special Build 2.3
SE Virginia