I also have Voyager 35 and had the same issues particularly condensation.My solution was to fit polycarbonate secondary glazing with holes fitted with bungs,top and bottom to enable purging of the gap using co2/argon gas mix .I used 6mm foam tape as a seal between frame and polycarbonate and...
Trident Voyager 35...almost identical to mine though I dont have radar and my liferaft sits on the foredeck just in front of the coachroof and dont have an arch or mast steps. My dinghy is normally towed up to F4 then its out and deflated in the cockpit
Incidently my anchor is a 13kg Knox as...