if the engine need rework there are decent workshops doing quality overhauling of engines. if the car engine can be overhauled for say 30,000 and body work & paint need another 50K it will be less then 100,000. and You car will remain known to you for ups & down for say another 2 years.
Goto this place - MAGIC MOTORS - Google Maps
get an opinion and estimate for repairs. work out what is economical for you. - JDMs are total F UC K ups unless with a genuine auction sheet. Buying a locally USED JDM is greater risk then overhauling a known / owned car engine.