I have been using a pump for the last 10 years so maybe able to answer some of your questions
can he crawl in an attic with one? Most certinally yes, just depends on if you tape the site up or not and have a good waistband to hold the unit. .. I use a cellphone holder to put mine in.
Are they really 5000 dollars? What about supplies? A monthly figure? Mine was 7,500 for purchase a Medtronic, and the monthly supplies run around 750 for all the hookups.. if Uninsured this would be very difficult.
is there any surg in prep for it? How does it connect to ur body? You change sites for it every 30 days, you can get a infusion setup for your stomach or Leg.. depending on which choice you go by it's just a difference in angle of the needle you must stick in.. Much like hooking up a site for an I.V. and you can unplug it for a shower and then rehook it upto the site.
Should i keep learning about it, is it a realistic an option for him? Is there a safer alternative for him? It could easily be a realistic option for him except on the cost if he remains uninsured or not on disability to pay for it. However, You will have to do bloodsugars at least 8 times a day to stay on top of it otherwise your bloodsugars will go low as it runs 24/7.