Cabinet inc artwork, rails, door and paying yourself to do it £500
Paying yourself for cleaning the other bits £200
TAF playfield £800
TAF £1500
Marginally too dear @ £4250 especially as you need new plastics, new pop bumper assemblies, new ramp, new targets, new scoop, new lockbar, new legs, new DMD, new bookcase plastics parts and re-plating of all metal parts to get that as new look (another £800+ on top)
Perhaps 40 hours of your time if you're good, definitely not "Less than Stern LE" once you've put all the time and effort into it, the cabinet may be done and parts cleaned but I would imagine there will still be a fair bit to do