Ebay Timing belt kit

[tonyloban]

I searched and found some threads about kits, but the links are outdated so not much help.

I'm currently looking at this one:

http://www.ebay.com/itm/8pc-Timing-Belt-Kit-w-Water-Pump-Tensioner-Thermostat-Seals-for-BMW-325i-is-/281632217665?pt=Motors_Car_Truck_Parts_Accessories&hash=item4192969a41&vxp=mtr

and this one:

http://www.ebay.com/itm/BMW-E30-325is-1988-1991-Timing-Belt-Water-Pump-Tensioner-Thermostat-Seals-Kit-/151105906379?pt=Motors_Car_Truck_Parts_Accessories&hash=item232e9d26cb&vxp=mtr

Anyone ever use these? The parts look okay according to my research, but this is my first time ever doing a timing belt or working mechanically on a car this serious, so I'm very nervous about everything. Thanks for any help.