Yes, Bricasti is pretty amazing with their upgrade path for the M1. I'm confused though about the previous comment of a multicolor display. Mine, and others all have the standard red display and the remote has alway been available as an option. Here's the pricing of the upgrades from a few months ago.
Effective 1/2023
M1 upgrades
MDx Processor upgrade: $1250
The MDx processor is our latest enhancement to the product line, this upgrade will provide for native DSD256 with USB, and greatly improved Master Clock Sync, yielding an overall improvement over the previous hardware revisions of the processor noted above. Commencing 1/2020 the MDx processor was implemented in all new production for all products.
M1 factory upgrades
M1 Series II upgrade from M1SE with MDX: $2500
SE upgrade: $1000 MDx is not included.
Network Upgrade: $1500 with new rear panel , MDx is not included but recommended
Legacy Upgrades for older M1s
Remote upgrade Kit: $450 Adds the remote to older pre front panel IR capable M1s, includes external IR receiver and remote.
M1 Remote: $250 Replacement M1 remote, does not include IR receiver.
Considering there are cost savings if multiple upgrades are performed at the same time, package discounts available for M1 upgrades please contact us for more information and quotation. In some cases the rear panel may have to be replaced to support the upgrade.
All prices are exclusive of return shipping which with ground service is about $40-60, we will quote it at the time we are shipping.