I did an older TC kit about 6 months ago;
I changed things up a bit, took a lot of wood off and reshaped the lock panels;
I added a toe plate and completely reshaped the cheek piece to look like a real hawken;
Overall I thought the kit wasn't that easy to put together, stuff didn't fit very well. Could be my gun building experience was more advanced than the average kit builder and I needed to have a better metal to wood fit to be satisfied.
Being an old kit that sat in a basement for 30+ years I was surprised to find the barrel in pristine condition. Not so with the lock, it wouldn't set off. Somehow the sear spring plunger had gotten moisture in it and completely rusted out the plunger and spring as well as welding them into the housing. Luckily a friend with a milling machine was able to mill the rusted mass out leaving a perfectly cut hole the right size. It took some looking to find a spring and plunger but I was able to get everything back together and functioning perfectly.