Thinking of moving on. Whats it worth?

[gibbzy2k1]

After 6 years we are thinking of selling the ZS, possibly looking at an Alfa 159...
Its a 2005 '54' plate ZS+ TD in Ignition Blue. Has been a lovely car over the year but with 2 kids I am finding it a bit cramped now and fancying a change.

In the 6 years we have had the car it has been looked after and I have put lots of hours into her.

Work I can remember of hand:

Belt done around 50K in 2010
Front suspension was completely poly bushed in 2012 @67k,
New tires on 17" straights in 04/14 @ 88.5k
Filters, oil, Rear wheel bearings, rear brakes and SDI injectors fitted 04/14 @88.6k
front brakes in 05/14 @89.8k
cat back standar eshaust in 07/14 @ 91.2k
engine oil filter, oil and fuel filter changed in 10/14 @ 93.2k
New battery in 02/15 @ 94.2k
oil and filters in 04/15 @95k
remapped by Dakta in 04/15 @ 95.6k
A/C regassed 08/15 @ 95.k
oil, filters and coolant replaced in 08/15 @ 100.5k

There is probably more but i'll have to dig out the folder to look.

The SDI's had about 40k on them before being fitted.

i also replaced the door handles with R45 chrome ones but the back driver door handle has broken on the one pin and isn't colour coded.

i just wondered what sort of interest this would get and what sort of price you guys think it would command?

its not for sale yet, as the discussion of a new car only came up on Sunday, so this is just thoughts.