Triplex owner finance deal analysis help

[Dave Laub]

It's been a while since I've spent time analyzing rental properties- most of my time involves analyzing fix and flips. I have some spreadsheets to do this, but I have an opportunity to get some owner financing on this deal and need a few sets of eyes on it to help.

Quick info:
Denver suburb triplex
Well maintained, with bigger ticket items replaced in recent years
Fully rented @ $1k per unit, probably below market rents
Nice neighborhood, good rental location, good condition
Asking $425k
Willing to owner carry 1/2, % yet to be determined

I know this isn't a huge cash flowing deal, but is it worth it to take advantage of the owner financing option? And if so, how would it best be structured?