I started with absolutely NO tools at ALL.
What I ended up doing was opening 2 browser windows.. www.browntool.com
and searching on each tool listed in Section 3. ..Putting the cheapest one in my shopping cart on whichever site had it. I also used www.mcmaster.com
for the plexiglass drill bits that I couldn't seem to find anywhere else.
Some of the more expensive tools like the PRP-26A blind-riveter tool and pneumatic squeezer, I found on e-bay for good prices. Wish I bought that squeezer earlier!!
Other items not listed but you'll probably need:
#17 drill bit (now required in the Fuse kit), #6 screw dimple die (for landing light plexi's screws), an extra countersink cage (else you'll be swapping the #30 & #40 countersink cutters in it all the time), pneumatic blind riveter (im using the $70 from harbor freight; the Astro one from amazon broke), pneumatic solid squeezer, a shop-head rivet gauge set, and a cheap ryobi grinding wheel from Home Depot (and a abrasotex 6" light deburring wheel).
If you'd like, I can send you a spreadsheet with all my purchases. I got away with $1627
in July 2017 including a used pneumatic sqeezer from ebay.