I purchased 8GB of RAM for my '09 MacMini from Crucial on Friday mid day, free 3 day delivery. Very surprised when the RAM arrived Saturday morning, and by following iFixit guide I MacMini was fully upgraded in 10 minutes. This is in the UK. It only cost me £44 which is very reasonable. Keith.
Before running hot water ensure your dishwasher has a hot water feed. Most modern dishwashers only have a cold water feed and heat the water as necessary.
Also, when removing the charging dock board flex cable, the connector has a black lock arm. Remove the foam pad and tape to reveal the lock. Gently ease the lock arm up then ease the flex out.
Take care when removing the coax connector. Mine was very tight and I managed to disconnect the coax cable from the connector. Phone is now in the bin :-(