My boat had a pressurized alcohol cooktop when I got it. The first time I used it I almost caught the curtains on fire. The cookmate (same as Origo) will go 3-5 meals for 2 on a fill, and is very easy to refil if needed. It seems much safer.
Keep in mind the added costs of propane, if you are leaning that way. In my case the cost of all the extras (tank, hose, regulator, solenoid, sniffer ect) exceded the cost of the original appliance by a large margin. If you have other needs for it like a heater or would like to T off the main tank for a BBQ it might be worth it all, but on a small boat it can get to be too much stuff.
The cooktops can be gimbaled, just ask how often you will cooking at sea. I have some pot holders (you can see the mount to the left in my picture) that work OK at anchor
A final thought, it looks like you are planning to spend time in the tropics. Doing much cooking inside a small boat in that heat and humidity can be a bit much. Although I live in the anit-tropics (puget sound) cooking inside on a hot day is no fun, and an oven
would make it worse. Lots of salads and the BBQ on the stern rail is a nice way to go. I use the 1 lb spin on tanks for the BBQ.
Share a picture or two of your boat when you get it fixed up. Mine has the orignal 40 year old green and blue fabric, the 70's were not so bad!