The build is now complete. The body parts does include 2 lexan splash guards you need to install on the rear arms. I highly suggest you do this as it keeps out a lot of crud.

I will do an update with the hop ups, new optional parts and attached painted body pic. Maybe if a video if I get motivated.

Meanwhile here's a list of upgrades not listed on TRF801X page on TamiyaUSA. Some discovered by me while others are listed by the Tamiya drivers.

Tamiya parts:

84038 TRF801 Aluminum Rear Hub - L / R
1012 TRF801 HD Upper Shock Mount
1018 lw drive shafts
1021 lw diff outdrive
1019 lw front center drive shaft
1020 lw rear center drive shaft
1017 lw center joint
1024 lw captured axle
1023 rear shock tower
1022 front shock tower
51132 RC 6mm Alum. Stabilizer End (you will have to drill a bigger hole if you are using the largest swaybar, as a plus, they are blue)
84089 RC Round Head Socket Screw - Titanium 2.6x8mm 4pcs (for the swaybar retainers on the bulkhead)
49345 RC TB Evo IV Titanium Screws (this will cover 80% of your 3mm screws)
54155 RC 3mm Thin Aluminum Lock Nut - 5pcs Blue
42143 RC 4mm Alum Serrated Wheel Nut - 4pcs Blue (for the motor mount)
42119 3x38mm Blue Titanium Turnbuckle

Non Tamiya Parts:

Team Losi 15mm Shock Bladders - [LOSA5430]
Team Losi Rear Spring Set (8ight/8ight-T) - LOSA5447
Team Losi Front Spring Set - LOSA5446

KYOIFW310 Kyosho Lightweight 46T Center Spur Gear (MP777, ST-R)
KYOIFW325 Kyosho Lightweight 48T Center Spur Gear (MP777, ST-R)
KYOIFW330 Kyosho Optional SP Brake Pad (MP777/WC)
KYOIFW122 Kyosho Special Brake Disk

OFN40596 OFNA Lightweight Front/Rear Differential Outdrive Cups
OFN10099 OFNA 1/8 Clutch Bells Shim Kit

LNS1460 Lunsford 4x60mm Titanium Turnbuckle (1)
LNS1550 Lunsford 5x50mm Titanium Turnbuckle (1)