wow!
many thanks for the responses. Can't say I am 100% decided- but for a bit of context...
The cost of the blacking was quoted as £564.44 for lifting the boat in and out of the water, £810 for blacking and materials and £76 for a jet wash- totalling 1450.44 inc VAT @lulu fish I guess that is still a hefty price?
I chatted with the broker's assistant for over an hour- my best charming version of myself- to see what I could glean. It wasn't a 'You wont need a survey on this boat" sales pitch! I was asking what she felt was the biggest outlay for restoring the boat, how much wriggle room there was on the price etc. Her comment was: "the hull needs sorting- take it to these guys and they will deal with it & with their expert opinion and actions sort it for you- the engine needs a once over, there is this chap who can take care of it, I will put you in touch. I guess a sort of broadly similar advice as to what @Neil2 commented on. I think her line was take it directly to the guys who can fix it, dont pay for someone to tell you to take it to the guys who can fix it.
I called a surveyor and we talked through the process, it will cost me £400 to get it done. He knows the broker, even knows the boat. He told me he would recommend having it taken out of the water, (at exactly the same place the lady suggested) and for 400+546 I get to know that the bottom needs blacking and the engine needs a service. sorry, I am being facetious. I of course will try to get one lift in and out and the work done at the same time.
In the end, I am cautious and would like to know that the thing is safe, I can't rely on my own judgement for that, so a survey comes next. I am super grateful for your comments and thoughts, I am going to sleep on it and see where I am in the cold light of day!
Many genuine thanks for taking the time to answer me- It is very reassuring to get some seasoned advice,
Tobes