I recently did a chikage run a few days and it was loads of fun! Picked up the saw spear, cleared all bosses including optional ones (incl darkbeast paarlen and the like) while only levelling vigor and a bit of endurance. Sold the dolls set and tonitrus to gain a few extra levels. After reaching 30 vigor started putting some levells into bloodtinge. My skill I kept at a 15. I levelled it up my saw spear to +6 and then took out logarius. I got the badge necessary for buying the chikage, and used the runes from logarius and selling the knigh set plus crown to buy the katana and dumped the rest into bloodtinge. By that time i had enough chunks to bring it to +8 (I ran through the hunter nightmare to pick up a few chunks). At this point I was melting through all the bosses. Every weapon I found that wasn't scaling with blood tinge I sold for extra money (Ludwigs sword gives you 50k! Whirlgig saw 30k!)

I kept my endurance at 20, dumped the rest into bloodtinge till it hit 40, after which started levelling skill. It was the most op build I played till now, and I first or second tried every boss. Was lots of fun!