I'm guessing it would be hard to get any businesses interested, as they would have to do the heavy lifting to import the sample/hopefully obtain the FRT and then any other importer/individual would benefit by buying at retail prices from the US auction/retail market- so there is little incentive. Also prices would be high- marked up from US retail/auction rates. This doesn't mean it isn't worth doing, but we would have to create an incentive for the Canadian importer- by committing to buy a specific number of RPD carbine imports through them, at their mark-up for example. The question is more how to absorb the cost of the sample, which could be destroyed in the process of being evaluated.
Any business members out there interested? IRG or another importer, for example, could buy up say 20 DSA RPD carbines as they are available on auction/retail sites in the US, paid for in full in advance by Canadian clients, with a mark-up to cover their profits/time/import admin and the cost of a sample for testing split between everyone. The firearms are kept in the US and if an FRT is issued they are imported. If they cannot be imported they can be sold back into the US market, clients refunded with some non-refundable fee going to IRG for their troubles etc. (No pressure IRG, just that you are well set up for this type of transaction already) The importer would have no significant risk, would turn a small profit if it fails and a larger profit if it succeeds. With current market rates in the US of $2800-2900 the firearms might cost 3.5-4k at the end of the day in Canada and it would take 2 years.
Another option would be to mod one of the RPDs that AE is bringing in, into a DSA carbine-type configuration with an 18.5" fluted barrel, railed top cover etc. etc. if you can get your hands on one eventually. No doubt some who are in on the AE deal will do so.