To address the eBay seller first. No, sorry, don't know the guy or his quality. Hopefully someone can chime in.
Next... measurements!
This is the info posted on Vaderpainter's website:
Height
6' 6" (~201.17 cm)Hat size
7 3/4Neck
18 1/2 (~46.99 cm)Chest
50" (~127.00 cm)Waist
38" (~96.52 cm)Biceps
18" (~45.72 cm)forearm
15" (~38.10 cm)Large thigh
27" (~68.58 cm)Calf
18" (~45.72 cm)Shoe size - a very wide 12 made to measure 6E fitting
Dave Prowse's ESB Measurements
Height: dressed
82" (~208.28 cm) undressed
79" (~200.66 cm)Neck To Floor:
69" (~175.26 cm)Back Neck To Hip: seated
30.5" (~77.47 cm)Torso Length: neck front to neck back through crotch
72" (~182.88 cm)Shoulders across back
19.5" (~49.53 cm)Chest:
45.5" (~115.57 cm)Upper Chest:
47" (~119.38 cm)Under Chest:
41.5" (~105.41 cm)Waist:
40" (~101.60 cm)Hips:
46.5" (~118.11)Armseye:
27" (~68.58 cm)Bicep:
17" (~43.18 cm)Elbow"
14.5" (~36.83 cm)Forearm:
14.5" (~36.83 cm)Wrist:
10.5" (~26.67 cm)Sleeve shoulder to wrist
27.75" (~70.49 cm)Shoulder To Elbow:
14.75" (~37.47 cm)Shoulder To Finger Tip:
35.5" (~90.17 cm)Underarm To Wrist:
18.5" (~46.99 cm)Underarm To Elbow:
6.5" (~16.51 cm)Inseam To Ankle:
31" (~78.74 cm)Inseam To Floor:
36" (~91.44 cm)Outseam To Ankle:
45.5" (~115.57 cm)Outseam To Floor:
49.25" (~125.10 cm)Knee To Ankle:
18.5" (~46.99 cm)Knee To Floor:
22.5" (~57.15 cm)Rise: waist front to waist back through crotch
35" (~88.90 cm)Thigh:
27.5" (~69.85 cm)Knee:
19" (~48.26 cm)Calf:
16" (~40.64 cm)EDIT: updated with metric measurements.