LRP is still there, for awhile there their QC sagged a little and i guess alot of people were finding burs in their piston and sleeve, from what i hear this has been corrected on new ones coming out.
Novarossi, O.S., Dynamite, LRP, Force, and a few others are still there making new engines.
lately for MT bashers i have seen alot of people tending to go for the Novarossi 28-7 and 28-8.