you pushed me in a tight corner knowing Honda with 4 wheels is not my class.
you have exercised your 'muscle' to get me trapped into Honda project.
fair enough. sir, 
what i know about Honda K-series, it is loaded in multiple variants of civic / crx /acura from 2002 to 2011 either of the engine will be bolt-on swap.
as discussed you need to work upon it in steps. source the engine complete with transmission matching ecu and wiring. Bilal Gunj in Lahore is Honda Bone yard.
economical way is to check power train code coupled to stock engine, of the project car. That will help save some digits if the stock transmission & axles can be coupled to the newly sourced K-20/K-24
prep a document jot down all Mods you are looking for as add-on. use forums and google to source items.
the engine shall be sourced with wiring, sensors ECU and the exhaust manifold with CAT converter.
please look for acura CSX UK / variant details as guide line. Remember K24 has 5 variants coupled to different power trains. You need to look at stock code of your project vehicle for possibility coupling it to newer engine.