assumption: 10K £ = 20K USD
assumption: cost of materials & labor in the UK = materials & labor in the US (San Francisco CA)
i encourage you to to also factor in your time frame...
if you need this work done sooner than later, doing much of this work yourself may not be possible and you will need to buy your way into a solution.
i have priced out most of the same work recently and my best guess says you are close to your 10K number but prob a bit short.
as always your intent for the boat is also a variable. used sails
can be great and save you a lot on the mail sail replacement expense. i would not want to manage the risk of a used sail if i were about to embark on a major voyage.
in line with 'intended use' i would suggest also considering intended crew. if you will have semi experienced crew members you do NOT want your running rigging
to be all the same color. yelling 'the other blue one... i mean the other other other blue one... no back one to the left' when any one of 34895734573 things go wrong will result in at least frustration and possible injury.
when i budget
, i do my best to factor in what i can do myself, what i cant do myself what i am willing to pay (perceived value), my time frame and always expect my budget
may increase by 50%. my estimates tend to be spot on but there are always related expenses (e.g i am getting a bottom job done so it is the right time to inspect and replace the thru holes and when the haul her out the mast
is coming down so it will replace some of the mast hardware
because... it is a lot easier to do it when the mast is down etc).
seems like the boom is the biggest unknown and may push u well over your 10K estimate.