I have the same model ED. If you had to undertake rebuild of gen or engines, New Bern is likely a decent spot. The cosmetics look great, and a bit surprised the WD was not replaced during that upgrade with stackables. If you budget $100k and a season for the work, you probably have a great boat. Might be worth asking if an engine survey or estimate of repairs was made. I would rather have a stabilized 53 than not, and that alone is similar in cost to rebuilds. I am biased though.
You might get lucky with less work.
That is an original Onan box for the 20k gen, and 6V92s with walker air seps visible in the pictures.