i was about $4000 deep in rb25 by the time i got it running, of course i did all the work and called in some mad favors for the clip and mounts. count on spend $6000 to do an rb25 s14 now and add another $1500+ for labor. i wouldnt put the rb20 in a 14, its like putting a redtop in there only it weighs an extra 178 lbs and its harder to get parts. as for converting a zenki to a kouki figure on spending between $2500 and $3000 for the parts. there are a shit ton of lies on the net about how everyone got all this shit real cheap. they might have been true 4 or 5 yrs ago, but thats not the case anymore. to get quality stuff your gonna have to shell out some cash.