I have not heard of Sea Quest Yachts. You might do better posting in a more general forum. This section is specific to Pearson sailboats.
There are a couple on New and Used Yachts for Sale - YachtWorld.com
for sale ("Sea Quest" in general, I didn't select by L.O.A.)
Boat Design Net - the Boat Design and Boat Building Site
has a cached link to them at Seaquest Yachts - cached - the Boat Design and Boat Building Directory
The link to www.seaquestyachts.com
is listed there but is not functional.
That site includes a contact telephone number in the United Arab Emiretes. +97143384615
In the mean time - have you considered a Pearson?
Charlie P. P31-2 #80 CATNAP
To travel hopefully is a better thing than to arrive - R.L. Stevenson
I suspect that, if you should go to the end of the world, you would find somebody there going farther . . . - H.D. Thoreau