I'm new and have a years worth of schooling behind me now. Just setting up my shop and I've researched the heck out of it. In school we have the bench dog lift and we made the table top to take it along with the cabinet. It's similar to the open front Sommerfield one. I've found that Tylertools.com have some great prices along with many b stock item/refurbished. That's how I bought my general purpose double base router.
For my table, I just went with the Rt1000xl (being shipped today) as the price is right and it's easy for now as I have other projects I want to work on. I was able to get the smaller PC router from HD as it was NOS and missing the collet (the 1/2" one). PC is sending out the collet under warrantee. I ended up paying only 103.98 out the door and it's new (the Type 1, not the newer one) and I got the wrench to do above table lifting. This motor will eventually go into the motorized lift that will come out at the end of the summer.
I would have gone with the Triton as the lift on it seems like it's much smoother and easier than the PC, but the price swung it to the PC. Buy it in steps and get used to what you have and you won't regret it. I do love the Bench Dog at school. We have a cordless drill with a socket there all the time for 'speed lifting and lowering', lol. It works really well and gets a ton of use. I love the Woodpecker lift for the fine adjustments it can make. It's much easier to use than any others I've seen (I like to visit everyone's shop from class, lol).
I love the idea of what you want to do in order to save money to pay for your shop augmentation, but doors are tricky if you aren't PERFECT on your measurements and M/T joinery isn't something to just pick up. I'd practice practice practice that joint before starting your doors. JMHO