need help with wheels.....

[Preston]

i know nothing when it comes to buying wheels.

i bought my '87 supra (turbo) and it came with mustang cobra rims. nice condition... just mustang rims on a supra.... not something i agree with.

so i kno the bolt pattern is 5-114 and on some websites it says 5-114.3 wont fit my car but my friend says it will....

also how is the deepness of the rim measured? like how will i know other than looks if i am ordering rims online?

thanks so much.

please post anything that might help and any opinions are nice too!!