ECS rents a Wheel Spacer Fitment Kit. It's $129.00 USD to rent and when you return the kit they refund you $110.00 toward your next purchase.
You might be able to find it somewhere else for less but it will let you play around in the garage with different spacers. Here's the kit,
LINK.
This wheel spacer kit is designed to test fit different thickness adapters to determine which one works best on your car. These are for test fit only and only work on one wheel at a time. Kit contains 5 different thickness spacers and 3 each of most popular nuts and or studs, depending on application. Spacers are drilled with 5 different bolt patterns. Works with 4 X 100 , 5 X 100, 5 X 112, 5 X 120, 5 X130mm lug patterns. NOTE: Car cannot be driven with test spacers, they are designed for test fit only.
Each kit contains the following:
1mm Spacer, 2.5mm Spacer, 5mm Spacer, 10mm Spacer, 15mm Spacer
Also contains 3 each of:
M12x1.5 17mm Head Conical Seat Nut (60 degree cone)
M12x1.5 17mm Head Ball Seat Nut (24mm ball diameter)
M14x1.25 17mm Head Ball Seat Nut (24mm ball diameter)
M14x1.5 17mm Head Conical Seat Nut (60 degree cone)
M14x1.5 17mm Head Ball Seat Nut (24mm ball diameter)
M14x1.5 19mm Head Ball Seat Nut (28mm ball diameter)
M12x1.5 80mm Stud
M14x1.5 80mm Stud
M14x1.25 80mm Stud