Actually I got my workstation for 1000 dollars -plus import taxes- in Amazon -with 96GB of RAM- (second hand), so it's probably cheaper that your own computer . There are amazing deals in Amazon, worth taking a look.
What I do is download the entire collection from each instance. As you know, there is a 100 strategies limit in every collection, so they keep changing once they reach this limit.
I do some "harvesting" each 24 hrs. That is, I download the collections again every morning and rename them using a version nomenclature (1, 1.2, 1.3, etc)
Then, in a new instance of EAS, I upload all the collections that I've collected using the Validator and apply different acceptance criteria and robustness tests, trying to get a nice, smooth Portfolio balance / equity curve. When I see something that I like, I save the collection and create the Portfolio Expert Advisor. (Important here is to write down of all the parameters of your created collections / portfolios somewhere, otherwise you end up with a mess not knowing which is what)
Normally, I ask for a single criterium in the collection generation -in order to maintain the generation rate as fast as possible- but I get stricter when it comes to validation, because here is where you want to put stress into your strategies.
This is a workflow I developed in order to achieve both speed and have things organized. Guess some fellow traders have different approaches, but for me this is working well so far.