Get one with 380's in if possible anything under 306's are a waste of time if you intend to cruise at sea, unless you like semi displacment speeds or are on the river.
Other wise spacious boats for 4.
SS windows as well.
take a sea trail and insist on running at 2400 for at least half an hour with short burst to 2850 WOT with 380's you should get 28/29knts 306's 25 knts.
I had the 435. I prefer the 415s layout and the hull I believe is the same. If so they are a superb seaboat. With 306s I could get 24knots. The 415 is a lighter boat so should achieve slightly more. Price? I would think hovering around the £90-£100k mark for a really nice one.
We looked at a 415 very carefully before deciding on a P45.
MBY did a test on 'Sabre Sands' in the past vg it was too with 2 x 300 Sabres.
Brilliant hull ? a development of the 45 but it had 2 problems for us - one widely recognised is that the flybridge ladder is very upright/vertical and we wouldn't have felt v safe using it if the boat is up on the plane.
Second was the clincher for us - the room both leg and headroom at the downstairs driving position was just just too little. I am only 6ft and my knees were jammed against the bulkhead and I had to slouch down to look out of the windscreen.
May not be a problem for others but worth checking out. Otherwise a fantastic boat
but, of course, if your budget would stretch a P45 is better all round. I had to say that didn't I?