A list of things that alarm me:
1. Due to fanboys, any AE86 (even its awkward US Corolla GTS brother) are fetching at least $5k in running condition
2. Swapped an SR20DET, from a Silvia would be worth at least $2k let alone cost (or time if he swapped) of installation
3. Roll cage is probably another few grand to install
4. One picture, 6 words, 0 complete sentences
Some may be thinking he did the work himself, but it seems like to me that people charge even more when they put the time and effort themselves.