I do this for a living , so I guess I should chime in. There's alot of crappy new parts out being sold for our engine, like aluminum bearings, lifters no where as hard as they need to be, reground cams that have not been rehardened, lots of stuff that will bite you in the gazoo in short time. I build alot of MG A and B series motors, and only use the best avialable parts, tri metal bearings, billet or nitrite hardened reground cams, chilled iron lifters, etc. a stage one engine form me parts alone is about $1200.00, thats before the head, add another couple hundred dollars for new harden seats, valve springs, valves if needed, and with head reapair cost and machine work and you easliy exceed $2k, then you got to make sure the rocker assembly does nedd attention then I get about $1500 to clean everything to the tenth tenth, and assembly, so a stage one engine is about $3500. I could easliy get ot the $2700 dollar price listed on ebay, if I bought all the cheap parts and didn't put exhaust seats in the head, maybe I could even get to the guy selling them for $1500 if I took even more short cuts. In short, you get what you pay for. there was a guy over on the MGex forum, that got one of those Northwest Engines, and couldn't get it to get oil pressure. I always tell people, it always cheaper to do it right the first time than to do it half arse twice