Some help out there. You need the basics;
* Mash Tun
* Conditioning tanks (same as FV)
FV's do not have to be cylindro conical. Ability to temp control is good, esp for conditioning.
For the HLT - usually double the system size, ie. 2000l HLT for a 1000 litre boil. Cut eletric elments into tank if no trace or other heating is already inplace.
For the mash tun, easy acess for dough in and dig-out. Need a tank that is about the same height as it is wide so a not-to-thick grain bed is had. You'll need a false bottom in. a good example is a myton milk vat. use stainless sheet and make freinds with a fabricator.
for the boiler, higher than is wide to get a good rolling boil. you can cut in electric elements with something like a 2" bsb fitting for 15-20 kw elements. check lengths of elements etc. All depends on size, usually 1.3 kw per hecto...
For the FV's temp control is good, again mytons tanks work and you can top skim - hooray! Buy wine tanks if none sutable - conicals yuk....
Pumps, ones that can take heat work well. You need a heat exchanger as well, the bigger the better.
If there is a glycol system around then grab it.
The ABUK Firkin systems are basic systems and you can in the 12Hl type range get by. They are for all intents ale breweries which look like old milk vats... strange that coincidence...
If you buy some stuff not needed then sell it on ebay. if it is so cheap then spend some money heading to a course like Siebel or US Davis. The brewer not over engineered shiny tanks makes the beer - as Shaq once said 'i got da skilz, that is why i am so goooood!'
Head Brewer Rocks Brewing Co.