What silliness . No problem to get a system for under 200$. Buy a raspberry pi install Amiga os with rtg screen modes and use any HDMI/DVI monitor you have laying around. Boom you have a powerful classic Amiga that hardly use any electricity at all and is dead silent. Oh maybe he don't find aos useful for writing purposes, he can simply just install another OS like rasbian. If he is unhappy he lost hardly ANY money. If he bought a silly nextgen "Amiga" and wanted to sell it second hand he would be at a loss,even with new caps .
If he has a Intel mac or other PC he can try running UAE or maybe aros in VMware. This will cost nothing before committing to install on new partitions or buy a new system.