We also own a BJ45 with a 3B diesel engine. Indeed, they aren't very fast and make some noise at higher speeds. But it is still one of the best looking cruisers we think. We try to avoid highways because most trucks are faster than we are. On many stretches of European highways it is forbidden for trucks to overtake, which means that we with our BJ45 are in the front of a long line of pushing trucks 
It was not easy to find a good one in Europe. We (Dutch), got one from France. The engine was still in very good condition, but the bodywork needed a lot of attention. We made a short video about the work we had to do before the BJ45 was ready to go on a longer trip (to the Middle East). We eventually drove around 24K kilometres with only a few flat tyres
Here is the video:
Edwin & Ivonne
It was not easy to find a good one in Europe. We (Dutch), got one from France. The engine was still in very good condition, but the bodywork needed a lot of attention. We made a short video about the work we had to do before the BJ45 was ready to go on a longer trip (to the Middle East). We eventually drove around 24K kilometres with only a few flat tyres
Here is the video:
Edwin & Ivonne