British 60s - mid 80s Classic car

I have a rare 1999 Alfa 146 1.8 TS, 60k miles, great condition and on the road with 7 months MOT, large service file it's had belts, clutch, recent service inc spark plugs, new tyres and front brakes, dateless reg FXZ102 included value £3500-4000.
Also my caravan, Lunar Clubman CK 2 berth 2010 in good dry condition and still in use on a seasons pitch, will come fully equipped.
Value £4000-4500
Will swap either or both for the right car, can also include my drums if wanted and add a bit of cash if required.