Since the bolts are generic parts, you can probably still get new ones from the dealer.
Sometimes the price for small items like this is reasonable (a buck or 2), other times it's just ridiculous like $10 for some stupid plastic clip.
Turbo Revision1 Revision2 Engine Throttle Body. Toyota MR2 MK2. The engines in the MR2's that we get are 3SFE, 3SGE & 3SGTE - We do not get the 5SFE Engine therefore i know nothing about it. Item is in good working condition but does have a few age related marks.