Ratchet and sockets 3/8 drive for a and c (make sure you get the double hex one, meaning got 12 tooth or two hexagon)
speed handle with extension and bit holder
Screwdriver, Phillips and flat
Plier and cutter
combination spanner of various sizes (make sure you get the double hex one, meaning got 12 tooth or two hexagon)
most common size for ratchet and spanner/wrench includes 1/4,5/16,3/8,7/16,1/2,9/16,3/4,1 inch
better to buy the whole set cause eventually you'll be using all of it
mallet and hammer
thats all i can think for the basic set right now, these are for a and c
but the most important tool is the ratchet&socket, speed handle and the wrench
so start with ratchet spanner and speed handle