When my LN went out, I had a Bosch (Sp?) 240 amp put in my coach. It did not require the exciter so we wired it down and taped it in case I ever had to go back to a LN. I had the old LN overhauled in Oregon. The new Bosch cost about $350 and the overhaul cost $275. I keep it for a spare now. As the higher rated Bosch has worked better than the old LN did, I don't know that I wouldn't replace it with a new one and only use the overhauled one as a back-up. If you go another brand, make sure you don't need the exciter with it before you pull out of the repair facility.
Roy