I'm part way through my first engine kit and am finding the following tools etc to be the most useful ...
Snips Selection of files Engineers Square Steel straight edge
(Obviously soldering iron, solder and flux ... no glue used! ... as yet )
Softwood board for assembling parts on ... together with various elastic bands, hair-grips, wooden blocks and pegs used with a coupleof small clamps ... all used to hold items together prior to fixing.
Small sheet of glass ... it's the "flatest" surface I can find ... used for setting various bits "true".
Selection of photos of the prototype of my chosen model (Peckett 060 Swansea harbour/GWR) from all angles.
The only tip I can offer is ***dry fit everything several times*** before fixing to ensure that there's no c*ck ups when you do come to fix and that everything does indeed fit.
HTH