Harry,
A long as you stay very realistic about the learning curve you will be fine.
A couple tokens of information I want to pass along from decades of running cnc routers at production volumes
1) p2p routers are great for horizontal routing/boring. Nested machines do not allow you to get to the center of the material (.375" above table). That's the entire reason for the pod system. This is even more a problem with moving gantry machines vs moving table machines. A moving table machine allows you to come in from the side where a moving gantry machine will always have difficulty getting to that location. (you may want to confirm that you have enough y-axis travel to get your horizontal boring heads to the edge of the table while allowing room for tool clearance.
2) 5axis machines are amazing machines. BUT for panel processing (countertops, cabinet components, sheet goods) They are not as stout as their 3 and 4 axis siblings.
I like to compare them to NFL running backs. A 5 axis machine is the best running back at the NFL combine. They have the best footwork, can jump the highest, and have the best training (technology). BUT this 5axis running back has very long legs and that moves the center of gravity higher and thus it makes them less stable.
3) Based on your products that you are manufacturing your spindle is drastically oversized. Solid surface cuts like a hot knife in butter with a faceted oflute. and 1 piece mdf doors take even less power. If I had to guess you'll be using around 6-8hp taking 1 pass cuts with a 3 flute comp cutter at ~1000 ipm. We have a 16hp komo router that absolutely blasts through 8/4 white oak with a 3/4" cutter and I'm at about 55-60% load.
Now having extra hp might seem like a great idea just to have it in case you need it? BUT with the added HP comes added weight. And ultimately more wear and tear on your machine and to bring the RB example back this 5axis RB not only has long legs but they are also very top heavy. So your rails, racks, bearings, and ball screws are under additional strain without any additional gain.
Software: This might be the absolutely most critical purchase to your success. I DO NOT recommend getting mozaik,aspire,sketchup,ect. You're going to have a lot of information to process and learn. And the worst thing to do is to spend months (even years) learning software that you will outgrow. Non of the companies use the same terminology or workflow so everything will be different when it comes time to switch to a more powerful software package. Do not cheap out on this. You're going to NEED training and a knowledgable support team.
Fusion
alpha cam
mastercam
Routercim/cimtech
Tooling:
other than some insert carving bits for your 1 piece doors. you're really only going to need a couple tools until you want to try different profiles.
QIC.tools has the best quality tooling and that's who we use for our primary tooling. They are the only company I know of that actually tests and provides exact %'s of cobalt in their cutters.
3/8" compression cutter
3/8" downspiral
1/4" compression cutter
1/4" downspiral
The tooling diameter is going to be greatly influenced by the amount of vacuum you're pulling. (which is not solely based on the vac pumps HP).
You want to make sure you're getting an MDF with the proper density level as well typically this is 38-42. Whoever your supplier is will have this information. and take special care in painting the outside of the board and ensuring youre surfacing both sides of the sheet.