No, sorry. Gravwell's indexing system requires 64-bit architectures (amd64 or ARM).
The Gravwell indexer needs to access high memory ranges which require the full 64-bit address space. Shards are memory-mapped and 32-bit would mean we could only have shards of 2GB maximum size, which is far too 1999 for our tastes.
The Gravwell ingesters, on the other hand, can be run as 32-bit binaries if you are adventurous enough to compile them yourselves. https://github.com/gravwell/ingesters