mag thermostat housing?

Jegs has one for $40, so does Mancini $45. I found one on ebay for a 89 5.2 truck. There a a big ugly cast iron housing or a black stamped steel (what I chose). Then another option is the super tall magnum housing. Heard a chevy housing could work also.

Ugly is fine, going in an ugly pickup.

Is the super tall mag housing able to be tapped for a 3/8 npt for an aftermarket gauge?
I will look into the chevy housing, with a moroso spacer, actually have one on the 318 now to hook a gauge up.

Here is the pos, but reliable as a hammer.