Have a read at my [b]Profile Page[/b]:
https://www.techrepublic.com.com/5213-6257-0.html?id=4747169
The last line says it all - I'm currently 54 years old but my brain has already passed 75 and is approaching 80 years of age with rapidity. So, unless you've got an enormous chunk missing out of your brain and you have the vocabulary of a little kid half of the day, and forget words the other half, munch Betahistine Hydrochloride throughout the day to prevent yourself from losing balance and falling over, and have Melamine crockery because you keep dropping things... - try to lay off the pathos eh?!
As I previously posted:
http://www.twenga.co.uk/prices-GSA-T40N-Super-Multi-LG-Internal-DVD-burner-477332-0
If you look at the 2nd item in the listed products you'll see the blurb states:
[b][i]GSA-T40N The LG GSA-T40N replaces the GSA-T10N and the GSA-T20N. Specifications Drive Type: Internal Slim DVD+/-RW Dual Layer... ?24.95[/b]. Current exchange rate doesn't really count [$38] because computer components are always cheaper on your side of the Big Pond. Probably around $25 to $30.[/i]
Here's the Product Page itself:
http://www.itx-warehouse.co.uk/Product.aspx?ProductID=872
If they reckon it's a direct replacement then I'd go with that line.
Brain injury eh? It didn't prevent you from removing that single screw and pulling the dead drive out, did it? Therefore it's fairly rudimentary to suggest that you'll have zero difficulty screwing it back in!
I'd be more inclined to feel sorry for you if you were presented with a difficult problem, but since you've already accomplished 50% of it unaided, I don't see the point at present.
Also, if you are so badly disabled - how come your Job Role is listed as [b][u]Sales / Marketing / Business Development[/b][/u] ??
My advice to you would be to pick yourself up, dust yourself down, and get the hell on with your life. You're either working or you're not and your listed Job Role should accurately reflect this.
[b][u]*Update:[/b][/u]
Here's what Amazon dot com are listing the price as:
http://www.amazon.com/s/ref=nb_ss_gw?url=search-alias%3Daps&field-keywords=gsa-t40n&x=0&y=0
Edited for *