Graffen,
Yes, narrowgauge is seductive. And in recent years, the cost to get into HOn3 is pretty darn close to standard gauge. For On30, it’s usually cheaper than SG. Availability of items, kits and parts still varies, but isn’t very far from SG, either.
If you shop carefully, there are even darn good bargains, like your K-27s. After Blackstone came out with theirs, the brass K-27 market went into sharp price decline. There are lots of great locos out there still.
Here’s a tip. With Blackstone soon offering K-28 and K-36 locos, too, you’ll likely see similar declines in the value of these brass models. It probably won’t be as steep, because so many have come into HOn3, then went in search of these heavier Ks to supplment their Blackstone K-27s, but it will happen. The running qualities of a Blackstone are simply too superior out of the box to brass.
That said, I have several Sunset locos and have Tsunami-ed them all, added lots of wipers, and they preform comparably to my Blackstones now. For instance, my Westside C-25 was my very first HOn3 loco, never was quite right even after a remotor. It got the Tsunami, but also a remotor/gear kit from Locodoc. It’s like butter now.[8D][Y] He also offeres lots of other repowering options, so if your brass needs a little help, he’s a good source to keep in mind. http://locodoc.com/SuperGlideDriveHOn3.html
Here’s the C-25 at work
One of my K-27s switching at Animas Forks
And if you need an affordable diesel, the Liliput Gemeinder is easy to set to HOn3 ( 10.5 mm) by narrowing the available HOm drive axles to HOn3. Do that and have both the HOe (9mm, HOn30 stateside) and HOm (12 mm, same as TT and Swiss HO meter gauge) wheelsets also and you