Hi... I'm the guy who ported this, which was actually not too difficult, as the original gentleman, to whom all honour belongs, left good hints. Most "issues" where really just IFs without THENs. There were only two errors I saw in Ira Goldking's source, a wrong line number and a THRN instead of THEN. This is a link for those not on Facebook: https://pastebin.com/2Mih71eF
I put it also here as per eschaton's request:
https://github.com/KedalionDaimon/LispForTandy