Having owned both 185 and 205 , id still say put your money into a 205 instead .. Everythign is a better base for long term goodness ..
The only letdown , is the front end is unique , and can be expensive to find bits for , otherwise that - I wouldnt look back. 185's are getting long in the tooth , and they are severely limited by a number iof things if you plan to play about with them a bit
Stock standard 205 has : - better brakes , better turbo , better engine , better aero , better interior , better handling , and just overall a better buy
have a look at this one for a cheap - but VERY good example of the breed .. Its owned by a toyspeeder here , and ab absolute steal for the price ( and its still tough as nails )
http://www.trademe.co.nz/motors/used-ca ... 255773.htm
Ive seen this car close up , been in it , and its already upgraded in the RIGHT places ..