Always check other outlets for tools, and some supplies. Modelling accessories and tools / equipment are in the same league as anything to do with weddings - the price doubles or trebles !
Earlier this afternoon, I was in my local model shop, and had a look for some new tweezers, as my old, straight-ended pair have gone a bit bent and worn. I found a nice pair, stamped with the name of a well-known, Japanese model manufacturer, priced at £5.75 !!!
Ten minutes later, I bought a very similar pair at the Pharmacy across the road - for 75 pence !
Sprue cutters = wire snips = hardware store= 25% of the price of modelling tools.
Modelling knives - forget all the brands, including the well-known (and good) type which has an 'X' in the name, and a round, or tubular handle. The modelling knofe is probably the single most important, and most used modelling tool. Get a surgical scalpel handle, from Swann Morton, and a pack of straight blades and one of curved. The total cost will be the same, and probably less, than the 'modelling' knives, and it will last a lifetime, with the blades being stronger, more resilient, and sharper. But, more importantly, the 'flat' handle is safer to use, offers more control, and is more comfortable - and it won't roll of the bench ! One of the ones I use I've had for about forty years, probably more.
Until about two years ago, my modelling tools consisted of the scalpels, some tweezers, an old 'tin' razor saw, wet and dry paper and nail filing boards, a drawing compass, and some other household bits and pieces. Oh, and a mini power drill, only used for a very few jobs. The paint brushes are from my art equipment, and the airbrush was hardly used, until I bought a newer, fine-line one, inexpensive, just over a year ago.