I have been working on a simple 34X62 oval on a platform to use with a pre-war Lionel set my wife found for me as a birthday gift a few years ago. I hope to have it done and add it to the forum in a while.
Being the eternal frugalist, I shopped around for a pair of Lionel track pliers with the two grooves but was not that focused on finding some. On a visit for another reason to Harbor Freight, the font of all things China that used to be made in the US, If found a pair of linesman pliers, that had a space on the end of the jaws with no teeth, and the first groove looked just about the right spot to squeeze Lionel track ends tight again. This was their cheapest 8 inch linesman plier, $4.99 2 years ago and still as of this date. Now, this is hardened steel, so forget filing or drilling, but, ye olde Dremel with an abrasive disc made quick work cutting a new short groove for the right diameter to hold the pin tight, and opening up the inline groove, which turned out to make that slot, and the flat untoothed part of the pliers perfect for squeezing the track together again, allowing for the compressing of the flat of the track, and reducing the open just right for the pin. You can use the very tips of the plier to squeeze the tie to rail hold down tight too. You do have to finesse the diameter and cut a little, test a little, of course you don't want to go too big or it won't grip them, and too small and it will crush those hollow track pins I have run into now and then. Be sure to wear safety glasses when using a Dremel cut off wheel, they can grenade on you.
The other thing is white glue. Elmers has a tendency to wrinkle paper, but if you use book binders glue, paper things will adhere and lay flat without wrinkling. I am sure I might get some feedback that this has all been discussed before, but have you actually gone and looked for something that is popular in the search? How about 47 pages of stuff. Sometimes it is easier just to comment anew. When I used to get MR Magazine, a long time subscriber like me, asked about what seemed like a repetition of articles, albeit by new authors and modeled lines, but the same info. The Editor replied that it had been their experience that there was a 10 year rollover in subscriptions, and that on a 10 year cycle, they would run similar article all over again, because the new subscribers had never seen them before. So, with that in mind, I am just starting over.