By the time you build your second or third TLP kit, wood filler, squadron putty/bondo, tacky glue, thin but not so thin Loctite super glue you can spread with a toothpick will all be your best friends when it comes to getting those numerous paper shrouds and hats to look and perform their best. Do you hear those Pershing 1A shrouds calling yet?
Such good techniques, such a clean work area, wrapping your paper around the rounded leading edge, using a syringe to glue instead of your pinky! Pay attention kids! That spray adhesive does go everywhere, still trying to get it out of the basement shower that I decided to use as a booth for spray mounting on one kit last winter - bad idea - and bad technique not building a proper spray booth. Well, that is what you get when using my down and dirty techniques to crank out TLP kits.
And I like you are living on the edge by putting some heavy metal and positive motor retention in the hind end, yet keeping a sharp scientific eye on that CP-CG relationship. The Kevlar mount and moving the "falschirmhaltenrung" up are cool mods as well! So many TLP build threads with so many mods, so much pain and suffering in the build and then they go to fly it and then for the rest of the build thread ... sounds of crickets ... Hello??? Mostly we never seem to find out what happened, sometimes there is a good crash, and rarely do they fly great. I think as long as you stay away from bullet proofing for big motors you are fine - unless you are a real rocket scientist.
Also glad to see you are not panicking if the tail cone doesn't fit perfectly - it is a low cost TLP kit for Pete's sake. Just go and get a cocktail - drinking already on the first Skill level 3 TLP kit in the queue, you are going to make several beer runs by the time you finish the skill level 5 Krypton.