TIW with multiple custom delimiters

The following is a sample line from the most peculiar survey data file I have yet encountered.

R101@W 1/16 SEC 34 T40N R116W`1378053.2991`2448678.3409`5978.6676`DESCRIPTION`3 IN IP BC LOT 2 LOT 3`LCOR

The tilde is the data delimiter which is not a problem.  But the ampersand is a problem.

Technically, the ampersand  is delimiter for a second description or attribute. But, since this field is attached to the point name instead of the point code, doesn't seem to work.

If I could define two delimiters for parsing the data, would solve my problem, but this does not seem possible?  I can choose from comma, colon, etc from the standard list, plus a single custom delimiter but cannot figure out how to make two custom delimiters, even by directly editing the TIW file.

Does anyone know how to configure two custom delimiters? Or some other solution to parse the ampersand AND the tilde?

Meanwhile, I'll be consulting with client to determine if there are alternative ways of downloading the data.

Thanks

Robert Garrett