welcome.
i was a long time custom 1911 and like you was looking for something different. I came across the 10mm and have never looked back. glock has been building the 10mm almost since it came on the market so i figured i couldn't go wrong as it seemed the other manufactures had had some many problems with the full house load.
First, you will have to rethink your expectations of the trigger and this is not and will never be a 1911 single action trigger. there are a ton of different aftermarket things that can get you close. I don't see a reason to install something that may give you unknown problems. I also feel that giving yourself range time with this trigger you will not want it to be too light. search the" 25 cent trigger job or polishing". Super easy and costs nothing. It will smooth out the stacking feeling. You can look at some of the reduced power spring kits but definitely try various combinations as sometimes they get too light and won't reset trigger safety properly. Besides the more you shoot this trigger the smoother it gets.
I is not a 6 o'clock hold either. this took some retraining on my part and i still have trouble trusting my sights. Once you get used to it no fuss no muss.
recoil snap...try heavier recoil spring and metal guide rod 20 to 22 lbs.
The cross breed seems to be the most praised IWB. there is a DIY similar in the archive that I have yet to do but looks very promising.
I have never been a big fan of compensated models its distracting. Heavier spring and guide rod will do more to help.
cheaper trigger time can come from a AA 22lr conversion kit. kind of hard to find but well worth the cost.
below are some links to the plug you referenced. They do add weight so you will be giving up that aspect. If you put enough rounds down range and work on grip then again i see no reason to add something that may give you problems.
hope this helps you getting starting on your 10 mm journey.
http://www.brownells.com/.aspx/pid=1...for_GLOCK_reg_
http://www.glocktalk.com/forums/showthread.php?t=82158