All great upgrades, just curious why start with a purchased table for 130 - 160, then buy speed cloth cup holders and handles when you can get ply wood for that and cut to your table size you want, yes i understand you still need foam for rails, marine vinyl l for rail covers neoprene for under speed cloth.
Is it time management? buying the base saves time
Time and tools are a big factor. Also, the cost can add up quick, even if you're buying basic materials.
I'm working on my first custom build now and it's coming in right around $475 in total materials cost. Granted, that is with an upgraded table layout and legs, but even with basic legs and speed cloth, the total is more than you might think.
Here's my recent build spreadsheet modified with suited speed cloth and basic folding table legs to keep the cost down...
And that still requires one to have a jigsaw, power drill, and driver. You'll also need a host of other things, like a staple gun, utility knife, forstner bits, sawhorses, wood screws, extra jigsaw blades, etc. An air compressor and pneumatic stapler are nice bonuses as well. And let's not forget the weekend or so (and workshop space) that you'll need to build the thing. For some one new to woodworking and/or power tools, the costs, space, and time commitment can be substantial.
For a first time table build you could easily exceed $400, even if you already have most of the tools. The Barrington table, even with upgrades, is still well under $200, which is an incredibly attractive option as a pre-built alternative.