If $500 is your budget you're going to have a bad time, even ebay turbo kits dont go for $500.
You'll be needing around $2,000 or more.
For starters, you'll need to at least do a mini-me or intake manifold swap for an external 2wire IACV.
Then obd1 conversion and obd1 dizzy
Chipped ECU & tune
Aftermarket fuel pump
Higher flowing Injectors
Oil lines
Intercooler
D-series turbo manifold
Small turbo, a t3/t4 turbo is the common type you see on most builds
ARP headstuds, perhaps new headgasket, compression test just in case
2.5in exhaust
A few more things here and there,
Theres so much info on dseries and hondatech, do your research. If your budget is $500 give up and spend those on comfortable and functional mods. Click the FAQ (96-00 civic) link in my signature below and check out what ideas i can offer you.