A quick dig through 'The History of Ships', Peter Kemp, ISBN
1-84013-504-2 gives:

Prince Royal 1610, 114x43ft, 1330 tons, 55 guns:
Overall building cost was 20,000 pounds
of which 441 went on carving and 868 7s on painting/guilding

Sovereign of the Seas 1637 (size not mentioned)
Overall building cost 65,586 pounds 16s 9.5d (including guns)
of which 6,691 pounds on carving & decoration.

--
John

Note that both of these ships were large "prestige" vessels and _absurdly_
expensive for their firepower. The Sovereign (100 guns btw) especially so.

Staale Sannerud