Tools are tools and hand tools do most of our work, power tools make it easier and (sometimes) more accurate.
What you need most of all, especially as you are building from a kit, is a nice, flat surface upon which to build.
While I have a decent shop in size, it is also quite multi-purpose. (At present, model stuff has been shoved aside so I can get tomato plants transplanted into larger containers, for example.) So I have a bench or two, but neither of them are flat and I have no intention of creating a dedicated building surface which stays flat throughout the year.
So each time I get ready to build a new model it is off to a local hardware store for an 8-foot chunk of that shelving material which is laminated both sides and one edge with a white plastic. (Someone who remembers the name of this product please chime in.)
It gets cut to six feet, the cut-off serving as a building board for smaller parts such as elevators, stabilizers, etc. The big piece is laid on my (solid, even if not flat) bench and then is shimmed with playing cards until it really is flat.
To check alignment, grab a single piece of 1/8" balsa. Break into five pieces about 1" square. Use thin CA to glue one piece at each corner of building board. Stretch thread in an "X" pattern between far left and near right balsa pad, far right and near left pad. Glue in place.
Using the 5th piece, slide it around under the thread. High and low spots will be obvious. Shim with playing cards to eliminate.
Can't stick pins into this stuff, but I don't build that way, haven't for many years. But you can glue all kinds of supports and alignment devices in place (think of the jig pieces from Tom Morris, what I do is similar.)
When done, the board is generally ruined. They are cheap, throw it away.