OK, those are not extraordinarily high pressure springs. So no particular issue there.
Dishwashing soap is good; it will hold its 'soapiness' longer. A final rinse with scalding hot water that heats up the block will make it dry quickly. Then use ATF as suggested for cleaning the cylinder bores; clean them over and over 'til a fresh paper towel with ATF comes out clean. Clean the lifter bores similarly.
IMHO, a new oil pump is in order as some metal bits may have been through it already.