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Date: Sat, 9 Jan 2021 04:11:51 -0800 (PST)
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Subject: Re: Desired pure DOS ports
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On Monday, October 26, 2020 at 1:59:48 PM UTC, vjp DOT  DOT  DOT  AT at DOT biostrategist DOT dot DOT dot DOT com wrote:
> Thanks. I found pdftex. 
> 
> Well, some folks do these things. Someone who is used to compiling stuff, and 
> is set up to do it for other things, like my ISP's staff.. can do it much 
> more easily
> -- 
> Vasos Panagiotopoulos, Columbia'81+, Reagan, Mozart, Pindus 
> blog: panix.com/~vjp2/ruminatn.htm - = - web: panix.com/~vjp2/vasos.htm 
> facebook.com/vasjpan2 - linkedin.com/in/vasjpan02 - biostrategist.com 
> ---{Nothing herein constitutes advice. Everything fully disclaimed.}---

The projects you are asking about are very large, including a lot of code, optimisations, multiple languages, and os-specific codes. It would take a year full time to port each one of them. So about 500k$ for all 4 feels about right.