replacement low mileage civic engines

[andyroo2]

does anyone know of a good reliable company where I can buy replacement low mileage b16 a1/b16a2 vtec engine and gearbox?
I haven't got a civic yet but am trying to buy one at the mo only thing is a lot of the ones I have seen look great until you take them out and sound like they have had the nuts ragged out of them. I don’t mind doing the swap and I think its the best way to go as trying to get a car with a good body and engine at the right price seems imposable
any help or suggestions would be great.