Hi Gary, re your series 3. A lot depends upon condition and what has been done to it over the years along with service history and maintenance. There is a wide gap in prices regarding poor, reasonable, very good, immaculate conditions. Does it have all original numbers re engine, gearbox, does it have a heritage certificate stating authenticity of engine numbers etc. Has it been restored or is it original condition, has it been valued for insurance purposes, is it auto or manual, interior condition, ex import, you mention 5k spend on engine, what did that entail, plus point only two owners. I had a series 3 1971 and have just sold it and made 5k on it after owning it just 10 months, I could have turned 5k into 15k with some extra outlay and additional work. I am now well versed in what to look for on an e type series 3 after spending considerable time undertaking hands on experience with a professional ex jaguar mechanic/restorer who gave my car a thorough going over and explained every area (and i mean every) on the good bad and terrible re what to look for. e types can be notorious for rust as you probably are aware. After all that (sorry for the drawn out reply) but I could cover pages and pages of what to look for in e types re a seller or a buyer, it may pay in the long run as Peter kindly suggests to have the car given the once over by a specialist dealer in restoration/servicing and you should then be able to ask with confidence a price. Shame you are a distance aways from me, I could have given your car a once over for an hour to define condition. If its an engine out job its very costly, and a buyer would/should if any sense !!! pay special attention to the picture frame for that very reason. sill corrosion (holes inside rear w heel arches usual reason) and boot/floor pan are notorious to check for rust, delamination of rear suspension housing is also a vulnerable area, bonnet is critical re damage or corrosion all these affect selling price considerably. I mention these area's specifically so you can check yours. Hope it helps a little. All in all the e type is a beautiful car, it complimented my Porsche 911 a beauty in itself also. Good luck. Pictures would help define condition, why are you selling ? they are an appreciating classic but and a big but, condition is the deciding factor. beware some who offer to take it off your hands for next to nothing, believe me i experienced some of these charachters.