If you’re looking at SR power, you might want to just look at turbo-ing your KA. Its obviously not got the same JAYDEEEMM bling factor, but its going to give you the same amount of power, more or less. Also, you’re really going to want to try and see if you can do some of the work yourself, since its going to save you a ton of money. There are plenty of resources on the intarwebz on swaps for these cars, so learning how to do it shouldn’t be an issue. If you don’t have the space, then you’re obviously not able to do that. I still think considering a V8 would be of interest. Cheap motor, cheap parts.