Hi all, I need some help valuing my ALAN Record Carbonio from late 80s possibly early 90s (Best guess from some googling)? It's a 54cm frame with a Shimano 600 groupset, the chain, brake pads, rear mech pulleys and cabling are all reasonably new (I restored the bike a few years ago and it has stayed in a shed unridden since then). I put some cheap bar tape and tyres on it so that I could give it a test spin but I suspect they will both need changing. The brakes work very well and the gears shift alright but may need a tune up. The pedals and the wheels spin freely with no grinding or resistance. The headset feels tight and moves smoothly so I suspect everything is alright up front. Any help would be greatly appreciated as I wouldn't even know where to start price wise. I can provide extra pictures if needed. Thank you in advance.