The $200 budget is gonna go pretty quick.
Ditto with Mike on the cooler-tun. This will be the biggest savings and very easy to do.
Personally, I'm not a big fan of the aluminum boiler, but I've heard a lot of brewers using them with no problems, so this can work too.
With copper prices where they are right now, the chiller is gonna be a shocker to your budget. A 50 footer is about $100. This can be reduced a bit by making it yourself. Stainless Steel is almost the same price. (checked prices at midwestsuppies.com)
Cookers, I would say for the future 10Gal batches you will need something like the Banjo on this page:
Propane Burner, Single Propane Burners
I have the SQ14 for 5Gal batches and have had no complaints.
For the time being I use a buffet table to get the cooler-tun high enough to gravity drain into the boiler. Lowes or Home Despot have one thats 4' long and a bit narrower than mine that might save some room for ya. I'm in the planning stage of my rolling stand right now.
Like Mike said, use the minimum of equipment till you get the process down and you can use your experience to make choices for how you want to brew.