New Parts Used

Trailing arms

4 of 6072K24: 1/2"-20 R/H zinc/chrome/bronze 7000lb spherical rod end - McMaster-Carr
4 of C73-896: 1/2-20 R/H for 1" OD 0.065 tube - Chassis Shop
4 of BRP784: 1/2"-20 R/H jam nuts from Bicknell Racing Products
4 of 6072K241, 1/2"-20 L/H zinc/chrome/bronze 7000lb spherical rod end - McMaster-Carr
4 of C73-897: 1/2-20 L/H for 1" OD 0.065 tube - Chassis Shop
4 of BRP785: 1/2"-20 L/H jam nuts from Bicknell Racing Products
4 of 1/2"-20 x 2 1/2" grade 8 for axle 1/8" walled, 1" wide brackets
4 of 1/2"-20 x 3 1/2" grade 8 for chassis 1/8" walled, 2" wide brackets
8 of 1/2"-20 nyloc nuts
spacers and washers to suit brackets

If you choose to purchase trailing arms, ensure they are the correct length and have the correct fittings for your chassis and rear axle.

Panhard Rod

1 of 60745K261: 1/2"-20 R/H chrome-alloy/steel/teflon 16000lb spherical rod end
1 of 60745K262: 1/2"-20 L/H chrome-alloy/steel/teflon 16000lb spherical rod end
1 of C73-896: 1/2-20 R/H for 1" OD 0.065 tube - Chassis shop
1 of C73-897: 1/2-20 L/H for 1" OD 0.065 tube - Chassis shop
1 of BRP784: 1/2"-20 R/H jam nuts from Bicknell Racing Products
1 of BRP785: 1/2"-20 L/H jam nuts from Bicknell Racing Products
spacers and washers to suit brackets

Suspension Bushes

1 of 36" length, 1" diameter 80A duro, 8695K497 - McMaster-Carr

Front Suspension

2 of 60745K28, 3/4"-16 R/H chrome-alloy/steel/teflon 28000lb spherical rod end - McMaster-Carr
or 2 of 6072K68, 3/4"-16 R/H zinc/chrome/bronze 11000lb spherical rod
1' of 10-1156 1" 0.156" threadable tube (for 3/4"-16NF) - Chassis Shop
2 of McPherson strut caps - custom machined
2 of 3/4"-16 x 4" grade 8 bolts for strut caps
2 of 3/4"-16 nyloc nuts
4 of BRP733: 3/4" x 1/4" spacers from Bicknell Racing Products
2 of 3/4" heavy flat washers
8 of 3/8"-24 x 3 1/2" grade 8 bolts for 2" wide suspension brackets
8 of 3/8"-24 nylock nuts

Ball joint reamer, #85020 (12":1 1/2" or 8:1) from Chadwick Reamers.
2 of AFC20034, upper ball joints from Bicknell Racing
2 of BRP5162, small threaded ball joint sleeves from Bicknell Racing

Many 7 kit car builders may offer control arms, but if you elect to purchase them you must make sure they are supplying parts that are compatible with your chassis, the uprights, and the steering rack you've selected.

Steering

2 new tie rod ends for an '85 Toyota Corolla GTS
1 of AFC10400, 3/4" .007 over steering support bearing from Bicknell Racing Products
2 of 3/4"-16 jam nuts for mount above steering support
1 of 5913K54, steel 2 bolt flange ball bearing mount for 1" shaft from McMaster-Carr

Shocks

4 of AS656 from Aldan Eagle
Spanner for spring perch
2 x 250lb 8" springs - front
2 x 200lb 8" springs - rear.
8 of 1/2"-20 x 3 1/2" grade 8 for chassis 1/8" walled, 2" wide brackets
8 of 1/2"-20 nyloc nuts
spacers and washers to suit brackets

I found out later that a local 7 builder claims to be the dealer for Aldan in Canada. However, the Aldan representative that I dealt with made no mention of this. A good thing too, as at $720US vs $812US I still saved even including delivery costs.

Fiberglass Body Parts

From Champion Motor Cars:
1 Nose cone
2 front cycle fenders
2 rear wings
Button fasteners from Bicknell Racing Products.
Total cost (US$): 149 + 99 + 149 = $400, plus $100 delivery, a pretty good deal.

A local supplier wants a total of $1000 Cdn ($650US) for the same pieces. On top of that his nose cone needs modification to fit the Locost chassis. The cost is surprising, at $227US the local nose cone is more expensive than a Caterham piece that can be had for $202US.