Well i ll advice you to buy probox 1300cc ,it ll cost you around 9 75 to 10 without registration.add 21000 for getting it registered in isb.The basic difference between probox and succeed is rear seats,that you can get it yourself around 7000 by getting seats of corrolla x ,that is better than rear seat of suceed as i ve compared rear seat of succeed and corolla x.Getting vehicle in 1500 cc will be of no use due to packed traffic and speed limit in our country,even on motor way limit is 120 then y to burn extra fuel in local running by keeping 1500,moreover registration and token tax of 1500 is more.
Regarding parts like filter etc is no issue,one can get air filter of lepon in 300,oil filter is same of xli.
I am myself in isb if u need any assistance do let me know